Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
Armory Sponsor

[ARCHIVED THREAD] - Robinson Arms (Page 1 of 2)

Previous Page
/ 2
Next Page
1/6/2011 3:08:38 PM EDT
 In light of things I see here regarding RA I want to know how many people actually own or have owned an RA made gun. Not a Vepr as they simply imported them. I was going to do a poll, but like most polls the trolls can screw that up. So a simple yes I have and love it or hate it will suffice. I don't want to hear your stories about how he supported an anti gun person or anything irrelevant to the performance of his firearms.



 As for me, I owned an early M96 and loved it, sold it to fund a different toy namely an XCR and I love it as well. My only complaint is the wobbly Ace butt stock.
1/6/2011 3:43:40 PM EDT
[#1]
I have an early model XCR-L w/ CTR stock. I love it.
1/6/2011 4:02:15 PM EDT
[#2]
Had an XCR 556-L.  I liked it but not enough to keep me from selling it.  I'd really be temped to get a micro in 7.62x39 though.
1/6/2011 4:43:44 PM EDT
[#3]
50 reads and just like I thought only three of us who have actually owned an RA gun and we all liked them.
1/6/2011 4:50:30 PM EDT
[#4]
I have 3 XCR-Ls and all things considered they are my favorite rifle, at least until the 308 version comes out.
1/6/2011 5:31:55 PM EDT
[#5]
m96 former owner here, after they stopped making it they wouldn't sell parts to owners unless you broke one and set it back, pissed me off enough to sell the gun
1/6/2011 5:36:15 PM EDT
[#6]
Owned a XCR for about a year, loved it but ended up selling it to get something else.

I would buy another in a heart beat, especially if a new SCARish stock was ever offered.
1/6/2011 5:41:25 PM EDT
[#7]



Quoted:


m96 former owner here, after they stopped making it they wouldn't sell parts to owners unless you broke one and set it back, pissed me off enough to sell the gun
I can see if parts are limited to not let one person hoard them. I do know that they supposedly took all remaining spare parts and made up a bunch more M96's. They should however in my opinion still supply parts to those that still have their guns.





 
1/6/2011 5:49:03 PM EDT
[#8]
2 XCRs.
1/6/2011 5:58:28 PM EDT
[#9]
Loved mine. Love the scar more and couldn't afford both.

Posted Via AR15.Com Mobile
1/6/2011 6:00:35 PM EDT
[#10]
Quoted:

Quoted:
m96 former owner here, after they stopped making it they wouldn't sell parts to owners unless you broke one and set it back, pissed me off enough to sell the gun
I can see if parts are limited to not let one person hoard them. I do know that they supposedly took all remaining spare parts and made up a bunch more M96's. They should however in my opinion still supply parts to those that still have their guns.

 


final batch never happened, the guys that did the welding on the early receivers are no longer employed there.  The last time I called tara, she mentioned that one of the early welders was back, and there were looking at doing another run. They said they had plenty of parts in the warehouse when it came to spares.  Not hoarding, but damn the pin on the back of the piston does break from time to time. so you had to break one to get a new one.
1/6/2011 6:33:07 PM EDT
[#11]
Quoted:
 In light of things I see here regarding RA I want to know how many people actually own or have owned an RA made gun. Not a Vepr as they simply imported them. I was going to do a poll, but like most polls the trolls can screw that up. So a simple yes I have and love it or hate it will suffice. I don't want to hear your stories about how he supported an anti gun person or anything irrelevant to the performance of his firearms.

 As for me, I owned an early M96 and loved it, sold it to fund a different toy namely an XCR and I love it as well. My only complaint is the wobbly Ace butt stock.


There is an adjustment screw to take the slop out on the folder. If that does cure it, perhaps you might try new bushings on the hinge but I would be suprised if that was required.

1/6/2011 6:41:24 PM EDT
[#12]
I had one but sold it for an LWRC
1/6/2011 6:57:58 PM EDT
[#13]
Had an XCR, didnt like it enough to keep it.
1/6/2011 6:59:02 PM EDT
[#14]
Have 3......all have had warranty issues....massive warranty issues.  Love the guns, hate the owner.  They are simple, robust and reliable if built correctly.  If not, you can often times fix the gun yourself but for $1600+ , I don't think you should have to.

Sean
1/6/2011 7:12:09 PM EDT
[#15]
Currently own 1 - it has sold more than 1 to other people

No issues

Will buy another (at least one L and possibly a M)

Barry
1/6/2011 7:12:20 PM EDT
[#16]
I do dot own one. I like about 90% of the design. Before I was willing to purchase one, I needed to at least see one in person (I've not found anyone within local driving distance that stocks XCRs.), or better yet, shoot one. A shooting friend of mine special ordered one. I was impressed by the overall feel of the rifle. When several of us got a chance to do some casual shooting, I finally got a chance to shoot an XCR. Unfortunately, the rifle had some issues. Ammunition was some WWB 62gr. FMJ, some Federal AE 55gr. FMJ of LC brass. Magazines were a mixture of GI, Pmags, and Lancer L5s. It looked to be adequately lubed, and the owner was adamant about keeping it on the recommended gas setting during break-in as per the manual. All spent casings I examined (when found, brass was really launched far) had a weird raised circle on the primer. The rifle ate everything it was fed, and had no problems extracting and ejecting. The problems that bugged me were in the trigger group. Several times the trigger would not reset until I would bump the trigger after I had released it. Once, I could not get the trigger to reset at all, even when I tried to push it forward with my thumbnail (rifle remained pointed down range in a safe direction). The owner had to unload and break open the rifle before it could be returned to a live condition. A "dead" rifle did not make a good impression on me, which is disappointing.
1/6/2011 7:24:56 PM EDT
[#17]



Quoted:



Quoted:

 In light of things I see here regarding RA I want to know how many people actually own or have owned an RA made gun. Not a Vepr as they simply imported them. I was going to do a poll, but like most polls the trolls can screw that up. So a simple yes I have and love it or hate it will suffice. I don't want to hear your stories about how he supported an anti gun person or anything irrelevant to the performance of his firearms.



 As for me, I owned an early M96 and loved it, sold it to fund a different toy namely an XCR and I love it as well. My only complaint is the wobbly Ace butt stock.




There is an adjustment screw to take the slop out on the folder. If that does cure it, perhaps you might try new bushings on the hinge but I would be suprised if that was required.



I feel so stupid! I never even thought to look for an adjusting screw there. So simple, 1/4 turn out and the stock is tight as a drum! Thanks!





 
1/6/2011 8:26:21 PM EDT
[#18]
I have an early M96 really love it

1/6/2011 11:01:55 PM EDT
[#19]
I owned a XCR-L and I stupidly traded it for a MSAR.

I had no complaints with the XCR, I enjoyed shooting it and it never gave me a problem with any type of mag. They only PITA was adjusting the gas block, I never got the new gas block before I traded it. If I saw one for sale I'd be tempted to buy another one...

But I just bought a SCAR so it might be a while


On an unrelated note the happiest day of my gun collecting career was when I found someone who would trade for an MSAR.
1/6/2011 11:17:00 PM EDT
[#20]
I have an early XCR, no issues to report. The bolt that holds the stock on works itself loose once in a while which is annoying but other than that it has been perfect. I am worried for the company's future given some of the decisions that Alex has made lately-I wanted a .308 XCR and now have to question that because then I might have two rifles that I won't be able to get parts for in the future. I love the gun but it will have to come off of SHTF duty if something doesn't change at Robinson. I can't count on a gun that I can't guarantee will be serviceable for a while. Alex is free to run his company the way he sees fit, I'm not comfortable with his latest rant. I want to feel comfortable going to a gun manufacturer when I have a problem and after reading that I feel like I might have to cower to them for fear of catching someone before they got their morning cup of coffee.
1/7/2011 12:42:22 AM EDT
[#21]
I have an early XCR with most of the upgrades, and I love it.  
1/7/2011 1:58:17 AM EDT
[#22]
I have a M96, love it,  it's the only rifle that was made to look close to  the STONER 53
1/7/2011 4:30:53 AM EDT
[#23]
Have an early M96; it is a safe queen. Shot once, needs to be shot again.
1/7/2011 6:17:56 AM EDT
[#24]
XCR-L here- other than the stock which I have gotten used to (Ace type), I completely love mine.

I bought it as a used 1st gen, and upgraded the trigger and gas block just because (both bought from Kermit here in ID for XCR followers). Never a jam,never an issue never a complaint either before or after the upgrades.

1/7/2011 6:26:08 AM EDT
[#25]
My bro's XCR-L is the only 5.56 rifle I care for It's a sweet shooter. Accurate, easy to strip and maintain, and it fits me well.
1/7/2011 6:42:43 AM EDT
[#26]
Quoted:
I do dot own one. I like about 90% of the design. Before I was willing to purchase one, I needed to at least see one in person (I've not found anyone within local driving distance that stocks XCRs.), or better yet, shoot one. A shooting friend of mine special ordered one. I was impressed by the overall feel of the rifle. When several of us got a chance to do some casual shooting, I finally got a chance to shoot an XCR. Unfortunately, the rifle had some issues. Ammunition was some WWB 62gr. FMJ, some Federal AE 55gr. FMJ of LC brass. Magazines were a mixture of GI, Pmags, and Lancer L5s. It looked to be adequately lubed, and the owner was adamant about keeping it on the recommended gas setting during break-in as per the manual. All spent casings I examined (when found, brass was really launched far) had a weird raised circle on the primer. The rifle ate everything it was fed, and had no problems extracting and ejecting. The problems that bugged me were in the trigger group. Several times the trigger would not reset until I would bump the trigger after I had released it. Once, I could not get the trigger to reset at all, even when I tried to push it forward with my thumbnail (rifle remained pointed down range in a safe direction). The owner had to unload and break open the rifle before it could be returned to a live condition. A "dead" rifle did not make a good impression on me, which is disappointing.



The raised circle on the primer is normal for this weapon's firing pin.

The trigger problem is not common.  Do you know if it was an 'enhanced' trigger or the old style?   Either way, something was wrong with it and it needed to be corrected. I'd tell your friend to contact Rob Arms, tell them the situation and see if they'll give you the new parts. If you have the old trigger, they'll only replace it with the old trigger.  If you have the new one, you should get the new one.  If your friend has the old trigger and he wants to upgrade to the new one (best money you'll spend on upgrades for the XCR) it's $125.


Tell your friend good luck with the warranty.  Tell him to be as patient as possible.

HTH,
Sean
1/7/2011 7:45:02 AM EDT
[#27]
Bought one new in 2009, XCR-L 5.56, adjustable folding stock. Runs like a champ, eats all the ammo I throw at it. My only gripe is that i didn't but the 7.62 x 39 parts when I had the money.
1/7/2011 8:40:41 AM EDT
[#28]
Have one in 7.62x39 love it .. my ace stock doesnt wobble tho...

its the most accurate 7.62x39 even with cheap monarch ammo from academy.
1/7/2011 9:56:40 AM EDT
[#29]
I have an early XCR (have had it for 6 years now) with most of the upgrades installed. I SBR'd it to 10.5" and couldn't be happier. When Neit Arms comes out with their ACR stock adapter I will get that and switch the tubular folder for an ACR folder.



I can't say enough good things about the XCR and my experience dealing with the company has been great as well.



MadDog





1/7/2011 10:49:37 AM EDT
[#30]
I have one in 7.62x39 that i bought last year. Love the gun!  I want to buy another 7.62x39 SBR and an M (.308) version when it finally comes out. Great guns all in all.
1/7/2011 1:20:15 PM EDT
[#31]
Quoted:
Quoted:
...



The raised circle on the primer is normal for this weapon's firing pin.

The trigger problem is not common.  Do you know if it was an 'enhanced' trigger or the old style?   Either way, something was wrong with it and it needed to be corrected. I'd tell your friend to contact Rob Arms, tell them the situation and see if they'll give you the new parts. If you have the old trigger, they'll only replace it with the old trigger.  If you have the new one, you should get the new one.  If your friend has the old trigger and he wants to upgrade to the new one (best money you'll spend on upgrades for the XCR) it's $125.


Tell your friend good luck with the warranty.  Tell him to be as patient as possible.

HTH,
Sean

I'd heard of the raised circle on the primers from XCRs before, so I wasn't as worried about it being a pressure sign, though it is a little unnerving to think that it might be a pressure sign. It is a newer XCR, ordered after the new trigger groups were showing up in people's rifles, so i doubt it is the old style. My friend is a very patient person. It has been a bit since I've talked to him, so I don't know how the issue is being addressed. When the issue is fixed, I hope to shoot it some more, and see how valid my concerns are over the 10% of the design I don't like are.
1/7/2011 4:05:15 PM EDT
[#32]
I have a XCR in 5.56 and I love it.  It is probably tied with my DSA SA58 para carbine for my favorite rifle.
1/7/2011 4:51:28 PM EDT
[#33]
round 1
had:
m-96 sold it.
xcr sold it

round 2
had:
xcr sold it
m-96 sold it

round 3
im in the market for an xcr and an m-96

1/7/2011 7:30:48 PM EDT
[#34]
Got an XCR in .223/5.56 in May of 2010.  Newest version.  I was fully aware of various concerns people have voiced over the years, and after a couple emails back and forth with "Tech" he answered my questions and put my worries to bed.  

I couldn't be happier with the rifle.  Controls are intuitive.  Rifle is quite customizable (grip, tons of rail space, any stock you want...even some guys are making an adapter to put the ACR's stock on it!).  It chews through any ammo I feed it, went from steel to brass back to steel with over 1K rounds between cleaning/lubing and still chugged along.  The only thing I didn't like was the C-Products mag, so I got a bunch of Pmags instead.

I've shot friends' MSAR E4, M&P15, LMT piston, and Spike's AR and while all of them were nice, I don't like the controls on them.  

I know others have had problems (I feel for you Sean!), and although it seems to me they're fewer and further between, I'm not sure I'd recommend the XCR to a friend yet.  I'd certainly tell them how happy I am with mine, but I'd make sure they were fully aware of the potential to get something out of spec.  I'd make sure they're going into the purchase with open eyes.

I guess it comes down to that scenario I've heard in reference to 1911s.  If put in front of a table with various brand new, out-of-the-box firearms and told to pick one and go clear a room of bad guys, I'd pick a Glock and go.  Put my 1911 that I know works in the mix and I'd pick it any day.  Same thing with the XCR.  Line a new one up with a bunch of ARs and I'll pick an AR.  But knowing my XCR is a champ, I'll take mine over any other rifle.
1/7/2011 8:25:36 PM EDT
[#35]
Here's my XCR:
1/8/2011 7:33:28 AM EDT
[#36]
Quoted:
.  I'd certainly tell them how happy I am with mine, but I'd make sure they were fully aware of the potential to get something out of spec.  I'd make sure they're going into the purchase with open eyes.



And that's one of the best things IMO about this platform.....you may get something out of spec, but if you are at all mechanically inclined and have access to good tools, you can usually fix it yourself with relative ease.  

I too recommended the XCR to about a dozen people who bought rifles in late '09 and early 2010.....one was my father and the other was a very good friend at work.  My dad hasn't even shot his and my friend only ran 300 rounds through it for break in.   From what I've noticed, there are  a lot of owners of XCRs out there that shoot them very little and I often wonder if problems just haven't surfaced yet.  I kinda wish I hadn't recommended the rifles to these folks but at the time, mine were running 100 percent on brass cased, mil surp ammo and I'd even run about 1K of Wolf MC through 2 of them and they were flawless.....I thought I had the best of both worlds; great ergos and reliability with cheap steel cased ammo.  I just hope if they do start shooting them a lot, they'll work great for them.  No one wants to recommend a $1600 rifle and have it not work.

Sean


1/8/2011 8:19:55 AM EDT
[#37]
I've always liked the concept of the XCR, Roibinson's ass-hattery aside.  I have a couple questions though... do they offer a 1/7 barrel in 5.56mm yet?  How many screws hold the barrel in?
1/8/2011 8:20:44 AM EDT
[#38]
Quoted:
Quoted:
.  I'd certainly tell them how happy I am with mine, but I'd make sure they were fully aware of the potential to get something out of spec.  I'd make sure they're going into the purchase with open eyes.



And that's one of the best things IMO about this platform.....you may get something out of spec, but if you are at all mechanically inclined and have access to good tools, you can usually fix it yourself with relative ease.  

I too recommended the XCR to about a dozen people who bought rifles in late '09 and early 2010.....one was my father and the other was a very good friend at work.  My dad hasn't even shot his and my friend only ran 300 rounds through it for break in.   From what I've noticed, there are  a lot of owners of XCRs out there that shoot them very little and I often wonder if problems just haven't surfaced yet.  I kinda wish I hadn't recommended the rifles to these folks but at the time, mine were running 100 percent on brass cased, mil surp ammo and I'd even run about 1K of Wolf MC through 2 of them and they were flawless.....I thought I had the best of both worlds; great ergos and reliability with cheap steel cased ammo.  I just hope if they do start shooting them a lot, they'll work great for them.  No one wants to recommend a $1600 rifle and have it not work.

Sean




If something is wrong with the gun from the factory, it usually will surface with in the first thousand rounds (aside from a broken firing pin, which is not unusual for any gun). For every XCR owner with a low round count I bet there several hundred AR owners with a low round count and they probably spent as much on their AR counting all the things needed to bring it close to the feature set of the XCR.
1/8/2011 8:31:04 AM EDT
[#39]
Quoted:
I've always liked the concept of the XCR, Roibinson's ass-hattery aside.  I have a couple questions though... do they offer a 1/7 barrel in 5.56mm yet?  How many screws hold the barrel in?


1:7 is available on the Mini, Micro, and pistol models. We are still waiting for 1:7 on the longer barrels. They did recently change the rails to a full profile (no lightening cuts) so may there is hope for the barrels but I expect to see the XCR-M first.

One allen bolt holds the barrel  (just like one nut holds an AR barrel on).
1/8/2011 8:41:26 AM EDT
[#40]
I like mine.  Hopefully they will have a bunch of the extras we have been waiting for at SHOT this year.
1/8/2011 8:52:57 AM EDT
[#41]
I have an earlier XCR-L with gas system upgrade and in the process of SBR'ing. No problems at all. Now just waiting on the ACR stock adapter.
1/8/2011 9:03:40 AM EDT
[#42]
Quoted:
Quoted:
I've always liked the concept of the XCR, Roibinson's ass-hattery aside.  I have a couple questions though... do they offer a 1/7 barrel in 5.56mm yet?  How many screws hold the barrel in?


1:7 is available on the Mini, Micro, and pistol models. We are still waiting for 1:7 on the longer barrels. They did recently change the rails to a full profile (no lightening cuts) so may there is hope for the barrels but I expect to see the XCR-M first.

One allen bolt holds the barrel  (just like one nut holds an AR barrel on).


Thanks for the info...  I won't get one until I can get a 1/7 barrel, as the 75/77 grain stuff is main goto cartridge.  I'm concerned by the one allen screw  for the barrel.  The barrel nut one the AR has a LOT of surface area on the threads... once torqued on, it's unlikely to loosen accidentally.  The allen screw in the XCR has much less thread surface area.  Even properly torqued, it's more likely to come loose under vibration.  I wish RA would add a second set screw "just in case."  

edit: I realize friction has nothing to do with surface area... it does, however, relate to the stregnth of the fastener itself, and its susceptibility to vibration.

Anyways, thanks!

1/8/2011 12:02:50 PM EDT
[#43]

I have had my XCR since 2007.
I love it.It has become one of my favorite rifles.
1/8/2011 12:06:49 PM EDT
[#44]
I dont think firing pin breakage is that common; I've had a lot of military type weapons and put tens of thousands of rounds downrange, the only rifle I've ever had break a firing pin was the XCR. The barrel retention design is nothing like an AR, the barrel nut on an AR captures the barrel extension completely around its radius with even pressure across the mating surfaces. The XCR bolt presses the extension into the roof of the receiver to hold it in place.
1/8/2011 1:22:49 PM EDT
[#45]
I am very happy with mine.  

I have owned LMT, Bushmaster, Spikes, Sabre and Noveske. After owning the XCR, the only DI gun I kept was the Noveske.

My next black rifle will be a XCR Mini pistol that I will SBR.

1/8/2011 5:29:47 PM EDT
[#46]
Quoted:
Quoted:
Quoted:
I've always liked the concept of the XCR, Roibinson's ass-hattery aside.  I have a couple questions though... do they offer a 1/7 barrel in 5.56mm yet?  How many screws hold the barrel in?


1:7 is available on the Mini, Micro, and pistol models. We are still waiting for 1:7 on the longer barrels. They did recently change the rails to a full profile (no lightening cuts) so may there is hope for the barrels but I expect to see the XCR-M first.

One allen bolt holds the barrel  (just like one nut holds an AR barrel on).


Thanks for the info...  I won't get one until I can get a 1/7 barrel, as the 75/77 grain stuff is main goto cartridge.  I'm concerned by the one allen screw  for the barrel.  The barrel nut one the AR has a LOT of surface area on the threads... once torqued on, it's unlikely to loosen accidentally.  The allen screw in the XCR has much less thread surface area.  Even properly torqued, it's more likely to come loose under vibration.  I wish RA would add a second set screw "just in case."  

edit: I realize friction has nothing to do with surface area... it does, however, relate to the stregnth of the fastener itself, and its susceptibility to vibration.

Anyways, thanks!



I have often thought about replacing the allen bolt with a hex head bolt and putting something on the rail flush with the bolt so it could not rotate.
FWIW, the XCR does have helicoil where the barrel bolt threads into the upper and that does provide some extra friction.
1/8/2011 5:57:30 PM EDT
[#47]
Quoted:
I dont think firing pin breakage is that common; I've had a lot of military type weapons and put tens of thousands of rounds downrange, the only rifle I've ever had break a firing pin was the XCR. The barrel retention design is nothing like an AR, the barrel nut on an AR captures the barrel extension completely around its radius with even pressure across the mating surfaces. The XCR bolt presses the extension into the roof of the receiver to hold it in place.


I broke an AR15 firing pin once. My XCR firing pins have not failed. To clarify my earlier statement, I don't thing it happens frequently in any rifle but a firing pin is something I can see breaking on any rifle (as opposed to an extractor).

As far as the barrels go, there was an article a few years back discussing the reasons for the creation of the LMT MRP. One reason given was that during extened gun fights some HSLD guys noticed a shift in zero on their M4s. Apparently the heat created from the sustained firing was enough to make the dissimilar metals expand at different rates ultimately resulting in a loose barrel. Since the barrel nut as you had mentioned surrounds the barrel extension it has more area to absorb heat with.
1/9/2011 12:45:45 AM EDT
[#48]
I have an XCR. So far so good. No issues. Accuracy isn't anything to write home about but seems to be reliable. I'm only on my first thousand rounds so far. Functions with Wolf.
1/9/2011 7:53:34 AM EDT
[#49]
Quoted:
Quoted:
Quoted:
.  I'd certainly tell them how happy I am with mine, but I'd make sure they were fully aware of the potential to get something out of spec.  I'd make sure they're going into the purchase with open eyes.



And that's one of the best things IMO about this platform.....you may get something out of spec, but if you are at all mechanically inclined and have access to good tools, you can usually fix it yourself with relative ease.  

I too recommended the XCR to about a dozen people who bought rifles in late '09 and early 2010.....one was my father and the other was a very good friend at work.  My dad hasn't even shot his and my friend only ran 300 rounds through it for break in.   From what I've noticed, there are  a lot of owners of XCRs out there that shoot them very little and I often wonder if problems just haven't surfaced yet.  I kinda wish I hadn't recommended the rifles to these folks but at the time, mine were running 100 percent on brass cased, mil surp ammo and I'd even run about 1K of Wolf MC through 2 of them and they were flawless.....I thought I had the best of both worlds; great ergos and reliability with cheap steel cased ammo.  I just hope if they do start shooting them a lot, they'll work great for them.  No one wants to recommend a $1600 rifle and have it not work.

Sean




If something is wrong with the gun from the factory, it usually will surface with in the first thousand rounds (aside from a broken firing pin, which is not unusual for any gun). For every XCR owner with a low round count I bet there several hundred AR owners with a low round count and they probably spent as much on their AR counting all the things needed to bring it close to the feature set of the XCR.



You are 100% correct on that.....

I always say that it doesn't really matter what the gun costs......feeding it is what's expensive.  The purchase price is a sunk cost.  The ammo.....goes on forever.  And, let's face it, if you don't reload.....shooting a lot is VERY expensive.  I wish I could afford to shoot as much as I'd like even if I reloaded.

Heck, now that I have working XCRs....my ARs get shot very little.  The XCR, IMO, is probably one of the best platforms out there for me.  Stone simple, very ergonomic.....like all things, it could be improved with a better folding stock, ambi mag release, nitrided CHF bbls, a better bbl retention method, etc.....but overall, it's a damn fine system.


Sean
1/9/2011 8:00:07 AM EDT
[#50]
Quoted:
Quoted:
Quoted:
I've always liked the concept of the XCR, Roibinson's ass-hattery aside.  I have a couple questions though... do they offer a 1/7 barrel in 5.56mm yet?  How many screws hold the barrel in?


1:7 is available on the Mini, Micro, and pistol models. We are still waiting for 1:7 on the longer barrels. They did recently change the rails to a full profile (no lightening cuts) so may there is hope for the barrels but I expect to see the XCR-M first.

One allen bolt holds the barrel  (just like one nut holds an AR barrel on).


Thanks for the info...  I won't get one until I can get a 1/7 barrel, as the 75/77 grain stuff is main goto cartridge.  I'm concerned by the one allen screw  for the barrel.  The barrel nut one the AR has a LOT of surface area on the threads... once torqued on, it's unlikely to loosen accidentally.  The allen screw in the XCR has much less thread surface area.  Even properly torqued, it's more likely to come loose under vibration.  I wish RA would add a second set screw "just in case."  

edit: I realize friction has nothing to do with surface area... it does, however, relate to the stregnth of the fastener itself, and its susceptibility to vibration.

Anyways, thanks!





Honestly, I don't think if you torque the bbl bolt properly to 250 inch-lbs.....it'll come loose EVER by shooting it.  Now, can you over tighten it and snap the head of the bolt off with a standard 5 5/8" long allen wrench?  Apparently.  Ask me how I know.

I'd highly recommend if you tend to 'gorilla fist' fasteners, that you replace that set screw probably every 6-12 times you use it b/c you're stretching it and asking for a failure.  Otherwise, the more wise/prudent thing to do is use a torque wrench (250 in-lb or do the conversion to approximately 20 lb-ft if you only have one tq wrench).

JMO,
Sean
Previous Page
/ 2
Next Page

[ARCHIVED THREAD] - Robinson Arms (Page 1 of 2)

Armory Sponsor