AR 15 Barrel Vice Use

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O'Kelly's Boys

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I have an AR 15 aluminum barrel vice (brownells).

When you clamp the barrel into the vice, do you tape the barrel or use anything to keep the barrel finish from getting scratched?

O'Kelly's Boys
 
O'Kelly's Boys said:
I have an AR 15 aluminum barrel vice (brownells).

When you clamp the barrel into the vice, do you tape the barrel or use anything to keep the barrel finish from getting scratched?

O'Kelly's Boys
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I have the barrel vises and use masking tape of thin shop rags to protect the barrel.

I have also just put the barrel in the vise with nothing to protect it.If you tighten the vise tight enough, the barrel won't turn (Unless it is a stubborn barrel nut).I have had the barrel turn a little and leave some marks on the barrel, but that pasrt of the barrel is under the handguard so it didn't really bother me.

As Navy Shooter suggested, the best way to go is to get the reciever blocks (which I will be doing in the future).

SKBY.
 
I don't think I've ever had a flash hider on there that tight! I think you'd be alright just using the action block. I see what you mean though with the stress on the barrel.
 
If the flash hider is really on there, you'd be better off using the barrel vice blocks. I have hard stock cardboard siliconed to mine to prevent maring.
I'd clamp the barrel as close to the FH as possible.
 
Clamp the barrel under the handguards if you have to. That way if there is any slippage, it's hidden when things are back together again. Note, ALWAYS remove the gas tube prior to working with a clamped barrel. If you do get slippage, and your gas tube is still in there, it WILL get bent, and then you're down another road you will have preffered to avoid.

NavyShooter
 
Oh, and as a followup, I saw something years ago that the USAMU tested a bunch of AR type rifles, and found that an overly tight flash suppressor actually decreased the accuracy of the rifles involved. I don't recall the %, but it was statistically proven through their testing.

NS
 
NavyShooter said:
Oh, and as a followup, I saw something years ago that the USAMU tested a bunch of AR type rifles, and found that an overly tight flash suppressor actually decreased the accuracy of the rifles involved. I don't recall the %, but it was statistically proven through their testing.

NS
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I believe the test stated as much as a 30% group dispersion due to flash hider torque and inconsistencies in manufacture...IIRC.
 
HeadDamage said:
Perhaps off topic but when I put a Vortex flash hidder on my 20" upper the groups tighened up about 0.25 to 0.5 an moa.
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One of the reasons I liked using the KAC flash hider. Anything that has to line up a suppressor had better be concentric. The G-6 Vortex is a way cheaper alternative and just as effective, that's the way I will be going next time around.
 
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