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8/13/2008 8:07:27 PM EDT
I'm currently running a Del-Ton midlength upper with Daniel Defense 9.0 M4 FF Rails.  It's a great, solid rifle, but the thing is 9+ lbs unloaded.  This isn't such a problem, but all the weight tends to be at the front of the weapon, making it feel rather unbalanced.

What's the best solution to this problem?  Get the heavy barrel recontoured, or cut 1.5 and perm the flash hider?  Or both?

Anyone else here had to put their AR on a diet?
8/13/2008 8:15:08 PM EDT
[#1]
I think you'll lose a lot more weight with a thinner barrel.
8/13/2008 8:20:11 PM EDT
[#2]

Quoted:
I think you'll lose a lot more weight with a thinner barrel.


I don't want to go lightweight though.  I like the M4 profile the best, but I don't know if you can do that in a midlength.  What other options are there?
8/13/2008 8:24:34 PM EDT
[#3]

Quoted:

Quoted:
I think you'll lose a lot more weight with a thinner barrel.


I don't want to go lightweight though.  I like the M4 profile the best, but I don't know if you can do that in a midlength.  What other options are there?


Is your barrel a strait-up HBAR or is it turned down under the handguards? If it's an HBAR, get it turned down under the handguards.
8/13/2008 8:27:41 PM EDT
[#4]

Quoted:

Quoted:
I think you'll lose a lot more weight with a thinner barrel.


I don't want to go lightweight though.  I like the M4 profile the best, but I don't know if you can do that in a midlength.  What other options are there?


If you don't want it muzzle heavy, the M4 profile is not the way to go. A socom or medium profile will balance more toward the receiver, but as is, a lighter profile forward of the gas block is probably the only way to significantly affect the balance with out adding weight to the stock end. Going shorter might help too. Call ADCO, they can do the re-profiling and cut it down for you if you want.
8/13/2008 8:27:59 PM EDT
[#5]

Quoted:
Is your barrel a strait-up HBAR or is it turned down under the handguards? If it's an HBAR, get it turned down under the handguards.


It's a plain HBAR.   Any idea how much weight this would save?
8/13/2008 9:00:59 PM EDT
[#6]
You might want to IM COSteve for more info on this.  He seems VERY pleased with the improved balance and his dealings with ADCO:


Quoted:
I had a RRA 16" middy with their HBAR profile and got tired of the extra weight.  So, a trip to ADCO and I've now got a lightweight barrel profile and 14.7" w/pinned A2.  The difference in both weight (over 1¼ lbs lighter) and balance is amazing (the weight is now in the center of the rifle, not muzzle heavy).  Steve puts a target crown on the muzzle and it is still an accurate shooter.  BTW, barrel length doesn't affect accuracy, it affects velocity.


From this thread (and others): www.ar15.com/forums/topic.html?b=3&f=118&t=368676


Personally, I have a government-profile middy and even it seems front heavy.  I'm definitely going lightweight for my next build.
8/13/2008 9:09:02 PM EDT
[#7]

Quoted:

Quoted:
Is your barrel a strait-up HBAR or is it turned down under the handguards? If it's an HBAR, get it turned down under the handguards.


It's a plain HBAR.   Any idea how much weight this would save?


FWIW, I turned down my 7.5 kittykat barrel(heavy), which removed 7ounces. I would bet you could get twice that out of a 16+" barrel.


From this


to this
8/13/2008 9:26:30 PM EDT
[#8]

Quoted:

Quoted:

Quoted:
Is your barrel a strait-up HBAR or is it turned down under the handguards? If it's an HBAR, get it turned down under the handguards.


It's a plain HBAR.   Any idea how much weight this would save?


FWIW, I turned down my 7.5 kittykat barrel(heavy), which removed 7ounces. I would bet you could get twice that out of a 16+" barrel.


From this
www.degrata.com/images/BL-07.jpg

to this
i3.photobucket.com/albums/y59/glock2027/arbbl-profile.jpg


SOB....that is FANTASTICAL.
8/13/2008 9:30:29 PM EDT
[#9]
Get in the gym.
8/13/2008 9:36:55 PM EDT
[#10]

Quoted:
Get in the gym.




Send it to ADCO.  I had them turn my RRA HBAR down under the guards, and in front of the FSB.  In addition to weighing less, it balances a lot better, which is a greater advantage than any realized weight savings, IMO.  Here's some pics of ADCO's work:



It was worth the two weeks it took, and every penny it cost.
8/13/2008 11:08:10 PM EDT
[#11]

Quoted:
You might want to IM COSteve for more info on this.  He seems VERY pleased with the improved balance and his dealings with ADCO:


Quoted:
I had a RRA 16" middy with their HBAR profile and got tired of the extra weight.  So, a trip to ADCO and I've now got a lightweight barrel profile and 14.7" w/pinned A2.  The difference in both weight (over 1¼ lbs lighter) and balance is amazing (the weight is now in the center of the rifle, not muzzle heavy).  Steve puts a target crown on the muzzle and it is still an accurate shooter.  BTW, barrel length doesn't affect accuracy, it affects velocity.


From this thread (and others): www.ar15.com/forums/topic.html?b=3&f=118&t=368676

Personally, I have a government-profile middy and even it seems front heavy.  I'm definitely going lightweight for my next build.

Absolutely go with both the lightweight profile and 14.7" barrel + pinned A2 FH.  The weight and especially the balance is so much better I can't believe it.  Adco will do a kick ass job and your accuracy won't suffer at all.  I'm now wondering why anyone would want a 16" when the shorter one is so much better balanced.
8/13/2008 11:18:01 PM EDT
[#12]
I agree with the others.

Steve at ADCO does very good work.  His prices are a very good value.  On the work he has done for me, his turnaround time was very fast.  I have been very pleased.
8/14/2008 12:07:54 AM EDT
[#13]

Quoted:

Quoted:

Quoted:
I think you'll lose a lot more weight with a thinner barrel.


I don't want to go lightweight though.  I like the M4 profile the best, but I don't know if you can do that in a midlength.  What other options are there?


If you don't want it muzzle heavy, the M4 profile is not the way to go. A socom or medium profile will balance more toward the receiver, but as is, a lighter profile forward of the gas block is probably the only way to significantly affect the balance with out adding weight to the stock end. Going shorter might help too. Call ADCO, they can do the re-profiling and cut it down for you if you want.


Just so everyone does not get confused the above is complete tripe.  SOCOM profiles are more nose heavy than M4 profiles and significantly so.  We keep having this issue with newbs posting facts based on their imagination.  

Any reduction in weight forward of the receiver is significant... the further forward the more significant.  An M4 profile is MUCH less nose heavy than a HBAR and you will certainly notice it.  A SOCOM would cut that weight shedding in half.

Of course when discussing midlengths an M4 profile is just a govt profile aka light under the handguards and ~.74" out front.  SOCOM profile is .85" under the handguards.  Since the area under the handguards is larger on a midlength than a carbine you will have a HUGE difference once you go light under the handguards.

It also does not take that much exra weight in the rear to help balance a rifle.  If a CTR fells a bit nose heavy a UBR does not and the UBR is not THAT heavy when hefted in your hand.

IMO if you dont want to go lightweight on the front of the rifle you can cut it to 14.5" and pin a Phantom and get the same feel as the 16" lightweight profile out front.

A Phantom weighs the same as an A2 so a 14.5" barrel plus Phantom will be lighter and produce less flash vs the 14.7" and A2.

Depending on your HBAR actual profile (1" vs .95" etc and chamber taper if any) you can shed up to 12oz on a midlength by just doing the under the handguard profiling.
8/14/2008 1:12:58 AM EDT
[#14]
height=8
Quoted:
Get in the gym.


OK, I'm a total newb, and forgive me, but this statement makes perfect sense to me. I'm a small dude (5'7" 186lbs) and average physical condition. I own my first and only AR; a full size 20" stocker. Yea, it's nose heavy, but still lighter than my AK.

IDK, maybe I plagued with youth and enthusiasm?

Seriously though, with help from this site, I will build my own in the near future. Probably a AR pistol. That picture thread really has me droolin'.
8/14/2008 7:15:45 AM EDT
[#15]
So I'm looking at around $100 for a complete reprofiling, wouldn't it be easier/cheaper to sell this barrel off and buy what I'm looking for?
8/14/2008 9:30:57 AM EDT
[#16]
Spec the prices yourself... I am betting not.  Also you can have the sling mount and baynet cut off and have it propperly parked when its profiled.

The only LW barrels I know of are the 16" Bushy and the CMMG units.  CMMG is the only midlength lightweight I know of... it aint cheap and you wont get that much for your current used barrel once you subtract shipping the new upper and shipping your barrel to someone.
8/14/2008 10:00:10 AM EDT
[#17]

Quoted:
So I'm looking at around $100 for a complete reprofiling, wouldn't it be easier/cheaper to sell this barrel off and buy what I'm looking for?


Probably not. And if you like the accuracy of your current barrel and know what kind of ammo it likes, a bird in the hand is better than 2 in the bush.  IMHO.
8/14/2008 10:06:06 AM EDT
[#18]

Quoted:

Quoted:
Get in the gym.


OK, I'm a total newb, and forgive me, but this statement makes perfect sense to me. I'm a small dude (5'7" 186lbs) and average physical condition. I own my first and only AR; a full size 20" stocker. Yea, it's nose heavy, but still lighter than my AK.

IDK, maybe I plagued with youth and enthusiasm?

Seriously though, with help from this site, I will build my own in the near future. Probably a AR pistol. That picture thread really has me droolin'.


It's important that your rifle be well balanced and fit you well, I agree with that. I just think people go overboard sometimes trying to perfect a rifle. Just shoot it and drill with it a ton and you will learn to work it properly.
8/14/2008 1:36:07 PM EDT
[#19]

Quoted:
Quoted:

If you don't want it muzzle heavy, the M4 profile is not the way to go. A socom or medium profile will balance more toward the receiver, but as is, a lighter profile forward of the gas block is probably the only way to significantly affect the balance with out adding weight to the stock end. Going shorter might help too. Call ADCO, they can do the re-profiling and cut it down for you if you want.[/quote]

Just so everyone does not get confused the above is complete tripe.  SOCOM profiles are more nose heavy than M4 profiles and significantly so.  We keep having this issue with newbs posting facts based on their imagination.  

Any reduction in weight forward of the receiver is significant... the further forward the more significant.  An M4 profile is MUCH less nose heavy than a HBAR and you will certainly notice it.  A SOCOM would cut that weight shedding in half.



For the record, DevL is absolutely correct. I only considered the balance of the barrel by itself, failing to consider the balance of the complete rifle.

Also for the record, don't let my low post count fool you. I've been shooting for 20+ years and am not completely ignorant or a total newb. I am however prone to the occasional brain fart.

ETA: And I just wasted post 308 apologizing for that mental flatulence
8/14/2008 2:40:11 PM EDT
[#20]

Quoted:
You might want to IM COSteve for more info on this.  He seems VERY pleased with the improved balance and his dealings with ADCO:


Quoted:
I had a RRA 16" middy with their HBAR profile and got tired of the extra weight.  So, a trip to ADCO and I've now got a lightweight barrel profile and 14.7" w/pinned A2.  The difference in both weight (over 1¼ lbs lighter) and balance is amazing (the weight is now in the center of the rifle, not muzzle heavy).  Steve puts a target crown on the muzzle and it is still an accurate shooter.  BTW, barrel length doesn't affect accuracy, it affects velocity.


From this thread (and others): www.ar15.com/forums/topic.html?b=3&f=118&t=368676


Personally, I have a government-profile middy and even it seems front heavy.  I'm definitely going lightweight for my next build.


I agree, but installing a fixed stock does wonders to properly balance out the rifle.

Collapsible stock + mid-length= nose heavy.

A1 stock+ mid-length= just right!
8/15/2008 5:44:24 AM EDT
[#21]
Thanks for all the suggestions.  Before I send it out, is it worth it to disassemble the upper and remove the barrel myself if I have no tools to do so, or should I suck it up and pay the $50 for ADCO to do it?
8/15/2008 5:57:14 AM EDT
[#22]


Swap out the aluminum handguard for a carbon fiber FF tube.

8/15/2008 7:23:02 AM EDT
[#23]

Quoted:
Thanks for all the suggestions.  Before I send it out, is it worth it to disassemble the upper and remove the barrel myself if I have no tools to do so, or should I suck it up and pay the $50 for ADCO to do
it?


If you don't have the tools, or the time to do it yourself, let ADCO do it.
8/15/2008 9:05:18 AM EDT
[#24]
where does one get a carbon tube for an RRA to replace the aluminum one?
8/15/2008 10:22:26 AM EDT
[#25]

Originally Posted By fishngrits
i142.photobucket.com/albums/r89/cmdebate/RRAMidlength.jpg
It was worth the two weeks it took, and every penny it cost.


Nice rifle.  What length is that barrel?  Brand and length of rail?
8/15/2008 9:45:12 PM EDT
[#26]

Quoted:

Originally Posted By fishngrits
i142.photobucket.com/albums/r89/cmdebate/RRAMidlength.jpg
It was worth the two weeks it took, and every penny it cost.


Nice rifle.  What length is that barrel?  Brand and length of rail?


It's a 16" barrel.  The rails in that photo are MI, non-free float rails, but the rifle now has a Daniel Defense Omega free float rails on it.  
8/16/2008 8:54:32 AM EDT
[#27]

Quoted:

Quoted:
Thanks for all the suggestions.  Before I send it out, is it worth it to disassemble the upper and remove the barrel myself if I have no tools to do so, or should I suck it up and pay the $50 for ADCO to do
it?


If you don't have the tools, or the time to do it yourself, let ADCO do it.


Good advice.  If you want to get in the AR-building business, then it is worth getting the tools, but if you figure this is a one-time shot, then let ADCO do it.  They do it very well.
Moon
8/20/2008 8:52:07 PM EDT
[#28]
Will getting the barrel contoured under the handguards 'weaken' the barrel any?  Like, won't the barrel only be as strong as its thinnest point?
8/20/2008 10:08:08 PM EDT
[#29]

Quoted:
Get in the gym.


funny thing about that is that regardless of the amount of time he spends in the gym, his rifle will still weigh more than it needs to.  
8/21/2008 6:25:51 AM EDT
[#30]

Quoted:
Will getting the barrel contoured under the handguards 'weaken' the barrel any?  Like, won't the barrel only be as strong as its thinnest point?


The barrel will be just fine.
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