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4/26/2013 5:41:28 PM EDT
Bought a RLL off Subguns about 8 months ago and picked it up the other day! A trust did the trick as my local LOE will not approve form 4s.

Now I need some assistance figuring out what to put together for a host. Reliability and a stress free life for my RLL are my primary requirements.

Can some of you folks that actually own or have real life experience with RLLs give me your suggestions for lower receiver, upper receiver and barrel length, buffer tube and buffer type, etc? I have a green label Colt Sporter II and early Bushmaster that are same pattern as SP1, but I'm not looking to abuse those well preserved classics. M60Joe will put everything together for me and tune it, but I need to start by getting the right components. BTW: the RLL is like new and came with a KNS Protector..

Thanks,
Rat


4/27/2013 8:43:54 AM EDT
[#1]
You know you need an SP1 spec carrier.  Any replacement paddles you get will need to have been made, or modified for use with the re-enforcer (tab slots widened).  Depending on the clearance between your lower and uppers, the takedown pin post may need to be shaved to clear the link and re-enforcer combo.

The newest lower I use a link with is a pre-buyout DPMS, which has the same internal spec as an SP1, or your green label or early bushmaster.

With all the changes in ownership and location to both Bushmaster and DPMS, I do not know if their current product is LL compatible, and older Colt, older Bushmaster and older DPMS have been the only lowers I've personally run my links with.  I have relieved many a high shelf or slightly incompatible lower to fit a link, including Stag, Aero Precision, Spike's and of coursed removing pinnned-in sear blocks from transitional Colts.

Since you're sending it off to be tuned anyway, get the lower you like and have it relieved for link operation if it needs it.  If you purchase additional uppers for your host, you'll need to test them for re-enforcer clearance and have the post shaved if necessary.
4/27/2013 11:05:41 AM EDT
[#2]
M60Joe is your best friend.

He did my LL host conversion.
Try to get Spikes lower w/ low shelf and Colt bolt carrier (just my personal preference).... send them to M60Joe and done with it.
He could also supply the right paddle & modified Burst trigger group (to fire semi & auto) for your setup.

Don't forget to get a set of KNS anti-rotation pins.
My trigger group pin came loose after heavy full-auto fire.

Good luck and have fun with your new LL!
4/30/2013 4:07:19 PM EDT
[#3]
Young manufacturing makes a great chrome sp1 bolt carrier, pricey but awesome. Consider a heavier buffer if you run a shorter barrel.
5/1/2013 9:57:58 AM EDT
[#4]
I'm going to get an Colt 6920 with the M4 markings for my RLL as soon as prices drop a little more, I have three other lowers set up for it already, but that one will be the full time host. Then you can just say you have a Full Auto M4, and not go into the whole RLL vs. RR vs. RDIAS. Thats my reasoning anyway and  you get a quality Colt lower and quality upper.

M60joe said he charged $21 ($106 vs. $85) bucks more for the additional milling of the web on the Colt lowers vs. low shelf lowers. Prices may vary since then though.
5/1/2013 10:03:47 AM EDT
[#5]
Quoted:
I'm going to get an Colt 6920 with the M4 markings for my RLL as soon as prices drop a little more, I have three other lowers set up for it already, but that one will be the full time host. Then you can just say you have a Full Auto M4, and not go into the whole RLL vs. RR vs. RDIAS. Thats my reasoning anyway and  you get a quality Colt lower and quality upper.

M60joe said he charged $21 ($106 vs. $85) bucks more for the additional milling of the web on the Colt lowers vs. low shelf lowers. Prices may vary since then though.


Yep.  90% or more of the time spent relieving a lower is mounting and truing the workpiece (receiver) in the mill vise.  Couple quick relief cuts in aluminum are a matter of minutes once you're set up.
5/1/2013 12:56:32 PM EDT
[#6]
How much does it cost for Young MFG SP1 carrier?
Couldn't find the link where I could order one...
5/1/2013 7:51:49 PM EDT
[#7]
Call them direct, as i recall reading several other posts their "sp1" bolts are just slickside, not cut for rll.

http://www.ar15.com/forums/t_1_5/862291_.html&page=2


http://www.ar15.com/forums/t_6_23/385227_where_to_find_SP1_carrier_for_RLL_.html
5/2/2013 7:33:38 PM EDT
[#8]
Young Manufacturing makes a specific BCG just for the Lightning Link.  If you are getting one from them, that is the one you need to request.
5/21/2013 6:44:17 AM EDT
[#9]
Thanks to all who responded to my post. Wasn't sure if I needed to hit the reply button under the individual responses, or just the most recent one (which is what I did).

Circuits - Sounds like you have a LOT of experience with RLLs. You don't happen to live near Daytona Beach FL do you?? I do know I need an SP1 spec carrier. Since I don't want to use one of the carriers from my pre-ban Colt or Bushmaster, I'm looking for a new one to dedicate to the RLL host I want to build. They are kind of hard to find. Many of the new carriers sold seem to be M-16 FA spec and will need more milling. M60Joe advised to get an AR carrier because it's more difficult to mill all that extra material from the M16 carriers. I've reached out to Young MFG, and they said I need to specifically tell them I need a carrier to work with a RLL. Unfortunately, I have not been able to get much detail or pics of the carrier they said I need to order. I'm considering purchasing a basic AR15 carrier/bolt (not sure from who) and letting M60Joe tweak it as needed.

Here's what I now have available to send to M60Joe to start putting my RLL host together:
- New Spike's stripped lower (SL model with bump on inside right side of receiver)
- New Spike's LPK
- New Spike's buffer tube kit
- Used modified burst trigger group for select fire (M60Joe can check if it was modified correctly, or provide a new kit)

My biggest issue right now is figuring out what kind of upper to get and what barrel length. I was thinking about going with a 14.5 inch M4 style complete upper, but I may end up wishing I had bought something shorter. Seems like an 11.5 or 12.0 inch barrel would be a good compromise between something really short (7"-8") and something too long (14.5"). I see lots of folks suggesting Colt uppers for FA, but they are expensive, I'm not real big on the old school A-frame site, or shaving the rear post for re-enforcer clearance on an expensive upper. Speaking of which, what about taking some material off the bottom on the paddle for clearance, rather than shaving/filing the upper post/lug? I'm seen several posts about doing this, but you also have to raise the cut for the paddles.

I'm wondering if a less expensive upper from someone like Model 1 Sales would be OK, considering it will just be a bullet hose.

Coolhand - Which Colt bolt carrier did you start out with, old SP1 or newer version M60Joe had to modify?? BTW - I had a nice conversation with M60Joe and he seems like a great guy to work with!!

jt526 - Are you planning to start with a complete 16" Colt 6920 and just have M60Joe modify as needed? What's the difference with the new "2013 Config" on the 6920s? I used to be a big Colt AR supporter back in the day, but then they started adding sear blocks, webbing, etc. to the lowers. Haven't bought a Colt since the green label days......

AZAtty480 - Any experience with the Young MFG carrier for RLL? Pic you can share??

Wonder if anyone out there is considering use of a new PWS Mod 1 rifle as a RLL host. Would be interesting to see if the factory bolt/carrier could be modified to work with a RLL. By the time I get done purchasing all these parts and complete upper, it probably would have been cheaper to just buy a complete rifle and send it to M60Joe. Only drawback would be the long barrel.....

Thanks,
Rat
5/21/2013 8:14:03 AM EDT
[#10]
Quoted:
Circuits - Sounds like you have a LOT of experience with RLLs. You don't happen to live near Daytona Beach FL do you?? I do know I need an SP1 spec carrier. Since I don't want to use one of the carriers from my pre-ban Colt or Bushmaster, I'm looking for a new one to dedicate to the RLL host I want to build. They are kind of hard to find. Many of the new carriers sold seem to be M-16 FA spec and will need more milling. M60Joe advised to get an AR carrier because it's more difficult to mill all that extra material from the M16 carriers. I've reached out to Young MFG, and they said I need to specifically tell them I need a carrier to work with a RLL. Unfortunately, I have not been able to get much detail or pics of the carrier they said I need to order. I'm considering purchasing a basic AR15 carrier/bolt (not sure from who) and letting M60Joe tweak it as needed.


I'm in Colorado Springs, for now (new laws here suck). The young mentioned by AZAtty is the only one I know for certain will be LL spec from the manufacturer these days.  Between the craziness and my existing stockpiles, I haven't bought more since DPMS and Bushmaster were bought out, and don't know if the ones they make now are still compatible.

I'm wondering if a less expensive upper from someone like Model 1 Sales would be OK, considering it will just be a bullet hose.


Nothing wrong with cheap uppers for bullet hoses.  Spec of the takedown pin post is a defining dimension for operation of the LL, though.  Guess you'll never know until you try, so see if you can find someone's to try before you buy.
9/29/2013 6:23:33 AM EDT
[#11]
Hey Guys,

Thought I would give you an update on my RLL. I took my RLL and host to the range at Gander Mountain yesterday, and it ran like a sewing machine. I went to Gander because they allow FA! Shooting indoors kind of sucks, but none of the other ranges around Daytona allow FA firing. Access to open property around Daytona is difficult to find and I don't know anyone who has private property where this can be done.

I'll post some pictures soon, but here's what I'm using.

- Spikes lower and LPK
- Spikes buffer kit with T2 heavy buffer
- KNS anti rotation pins
- Spikes Complete upper with 11.5" CHF FN barrel. SAW type barrel with double chrome lining and BAR2 rail.
- KNS Enforcer on link

M60joe clearanced the lower and machined the Spikes M16 bolt that came with the complete upper.

Initially, I knew it wasn't going to work because the standard .032 paddles were to loose between the bolt carrier and upper. I've learned that the paddle thickness is critcal. I got about a dozen assorted paddles with my link. Some are too thin and some are too thick. I finally found one that fit snug and "clicked" when I closed the upper. I performed the timing test again and could hear the hammer drop. Yippee!
I measured the paddle that works and it's about .046-.047. Looks like I need to find some more paddles with this spec. The paddle thickness is based on the machining of the bolt, for sure.

Anyway, after more than 1 year of waiting, followed by putting the host together, it runs like a champ and is in a modern host. Nothing against RR and M16 owners, but being able to change hosts with a RLL or RDIAS is a GREAT thing! The best of both worlds would be to own both and I'm now looking for a nice RR or M16A1....... Fun stuff for sure!

Thanks,
Rat




9/30/2013 10:35:11 PM EDT
[#12]
Quote History
Quoted:
Hey Guys,

Thought I would give you an update on my RLL. I took my RLL and host to the range at Gander Mountain yesterday, and it ran like a sewing machine. I went to Gander because they allow FA! Shooting indoors kind of sucks, but none of the other ranges around Daytona allow FA firing. Access to open property around Daytona is difficult to find and I don't know anyone who has private property where this can be done.

I'll post some pictures soon, but here's what I'm using.

- Spikes lower and LPK
- Spikes buffer kit with T2 heavy buffer
- KNS anti rotation pins
- Spikes Complete upper with 11.5" CHF FN barrel. SAW type barrel with double chrome lining and BAR2 rail.
- KNS Enforcer on link

M60joe clearanced the lower and machined the Spikes M16 bolt that came with the complete upper.

Initially, I knew it wasn't going to work because the standard .032 paddles were to loose between the bolt carrier and upper. I've learned that the paddle thickness is critcal. I got about a dozen assorted paddles with my link. Some are too thin and some are too thick. I finally found one that fit snug and "clicked" when I closed the upper. I performed the timing test again and could hear the hammer drop. Yippee!
I measured the paddle that works and it's about .046-.047. Looks like I need to find some more paddles with this spec. The paddle thickness is based on the machining of the bolt, for sure.

Anyway, after more than 1 year of waiting, followed by putting the host together, it runs like a champ and is in a modern host. Nothing against RR and M16 owners, but being able to change hosts with a RLL or RDIAS is a GREAT thing! The best of both worlds would be to own both and I'm now looking for a nice RR or M16A1....... Fun stuff for sure!

Thanks,
Rat




View Quote


Congrats!  Have fun!
10/1/2013 9:30:08 AM EDT
[#13]

Quote History
Quoted:
Congrats!  Have fun!
View Quote View All Quotes
View All Quotes
Quote History
Quoted:



Quoted:

Hey Guys,



Thought I would give you an update on my RLL. I took my RLL and host to the range at Gander Mountain yesterday, and it ran like a sewing machine. I went to Gander because they allow FA! Shooting indoors kind of sucks, but none of the other ranges around Daytona allow FA firing. Access to open property around Daytona is difficult to find and I don't know anyone who has private property where this can be done.



I'll post some pictures soon, but here's what I'm using.



- Spikes lower and LPK

- Spikes buffer kit with T2 heavy buffer

- KNS anti rotation pins

- Spikes Complete upper with 11.5" CHF FN barrel. SAW type barrel with double chrome lining and BAR2 rail.

- KNS Enforcer on link



M60joe clearanced the lower and machined the Spikes M16 bolt that came with the complete upper.



Initially, I knew it wasn't going to work because the standard .032 paddles were to loose between the bolt carrier and upper. I've learned that the paddle thickness is critcal. I got about a dozen assorted paddles with my link. Some are too thin and some are too thick. I finally found one that fit snug and "clicked" when I closed the upper. I performed the timing test again and could hear the hammer drop. Yippee!

I measured the paddle that works and it's about .046-.047. Looks like I need to find some more paddles with this spec. The paddle thickness is based on the machining of the bolt, for sure.



Anyway, after more than 1 year of waiting, followed by putting the host together, it runs like a champ and is in a modern host. Nothing against RR and M16 owners, but being able to change hosts with a RLL or RDIAS is a GREAT thing! The best of both worlds would be to own both and I'm now looking for a nice RR or M16A1....... Fun stuff for sure!



Thanks,

Rat




Congrats!  Have fun!
Rat, you should post a photo

 



Have you thought about one of those mauduca*sp lowers?
10/7/2013 7:17:07 AM EDT
[#14]
Try out a Ares MCR dual feed rifle, they come with a SP1 profile bolt carrier.  You would need to have the lower machined though.
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