sketch Posted June 9, 2017 Report Share Posted June 9, 2017 Last night I swapped a barrel out for a longer one.. used a standard clamshell and a vice to remove the break.. well I lost most of my lights so it was kinda dark for the process.. I started wrenching on the break and it was rather tight so I gave it a quick jab and it felt like it broke loose, so I went in for another bight and noticed the gas block was sideways!?? Well I grabbed more light and realised I turned the whole Barrel! The barrel extension was held in place by the pin and notch in the upper.. so I sum what corrected the spun barrel by hand. It's now off by my eye an 1/8 th" or more. Is this a problem that can be fixed easily? Luckily it was the barrel to be replaced with a new longer version, so not down and out. My guess the cheep steel break rusted it's self solid in the threads and I over did it! But it came off no problem after that. Is there a better way to hold a barrel than the upper set up in a clam shell? I guess I could vice the barrel with some leather if things get bound up? Some breakes won't fit in some small handguards? Any thoughts? Quote Link to comment Share on other sites More sharing options...
jtallen83 Posted June 9, 2017 Report Share Posted June 9, 2017 Barrel blocks, they don't put any pressure on the upper or the extension like other methods.; http://www.ebay.com/itm/NO-M-A-R-4-Multi-Purpose-Magnetic-Vise-V-Groove-Soft-Jaw-Pad-Gun-Barrel-Blocks-/122498616599?hash=item1c857c8d17:g:asEAAOSw3ydVkb2k Quote Link to comment Share on other sites More sharing options...
98Z5V Posted June 9, 2017 Report Share Posted June 9, 2017 11 hours ago, sketch said: Is this a problem that can be fixed easily? That barrel extension gets torqued on the barrel at 175lb/ft. Not gonna be an around-the-house repair for it, and headspace needs to be checked after it's torqued back on there tight. It might line back up, it might not. Some people think that the index pin holds the extension on the barrel, but that's not the case. The index pin doesn't go into the threaded portion of the barrel, at all - only into the extension part. When it all gets torqued back together, the fixed position of the index pin has to line up (centerline) with the barrel's gas port - if not, there's no fixing it. That's if headspace isn't way off. Quote Link to comment Share on other sites More sharing options...
sketch Posted June 9, 2017 Author Report Share Posted June 9, 2017 Thanks fellas. 175# and I moved it with a 9" wrench hmmmm? Does the extension threads turn righty tighty looking from the mussel end of the barrel? Or is it up to the barrel maker? Quote Link to comment Share on other sites More sharing options...
98Z5V Posted June 9, 2017 Report Share Posted June 9, 2017 Standard threads, when looking from the extension end out towards the end of the barrel. No weird reverse-thread stuff going on. It was probably never on there at 175 to begin with, brother. Just line it back up with whatever torque it takes to do it, but Rocksett the shiit out of that extension. Quote Link to comment Share on other sites More sharing options...
survivalshop Posted June 9, 2017 Report Share Posted June 9, 2017 These are the ones I have used for thirty some years , with a little soft leather .about $25 at Brownells. Could the Muzzle device be Rock set in place ? Quote Link to comment Share on other sites More sharing options...
washguy Posted June 9, 2017 Report Share Posted June 9, 2017 (edited) Kool aid time it was made for your boo boo Full Description The AR10/SR25 Reaction Rod makes the removal and installation of barrels, flash hiders, gas blocks and hand guards much easier and simpler. The Reaction Rod is designed to be gripped in a bench vise so that the rod is either horizontal or vertical. The upper receiver is then slid onto the rod and the rod’s integral splines enter the barrel extension and secure the barrel extension from turning. This allows all the torque from barrel nut wrenches to go directly into the barrel extension. In contrast, receiver vise blocks transmit the turning force into the aluminum receiver, a good part of which passes through the small, easily distorted receiver index pin. With the Geissele Reaction Rod, marring of an upper receiver’s finish by gripping and twisting inside vise blocks is eliminated and so is the need to remove sights and mounts from the receiver’s M1913 rail. https://geissele.com/reaction-rod-ar-10-sr25.html no crap ill never have one though Wash Edited June 9, 2017 by washguy Quote Link to comment Share on other sites More sharing options...
survivalshop Posted June 9, 2017 Report Share Posted June 9, 2017 56 minutes ago, washguy said: Kool aid time it was made for your boo boo Full Description The AR10/SR25 Reaction Rod makes the removal and installation of barrels, flash hiders, gas blocks and hand guards much easier and simpler. The Reaction Rod is designed to be gripped in a bench vise so that the rod is either horizontal or vertical. The upper receiver is then slid onto the rod and the rod’s integral splines enter the barrel extension and secure the barrel extension from turning. This allows all the torque from barrel nut wrenches to go directly into the barrel extension. In contrast, receiver vise blocks transmit the turning force into the aluminum receiver, a good part of which passes through the small, easily distorted receiver index pin. With the Geissele Reaction Rod, marring of an upper receiver’s finish by gripping and twisting inside vise blocks is eliminated and so is the need to remove sights and mounts from the receiver’s M1913 rail. https://geissele.com/reaction-rod-ar-10-sr25.html no crap ill never have one though Wash Are you sure ? His Barrel turned out of the Barrel Extension , so how would this thing help ? Quote Link to comment Share on other sites More sharing options...
98Z5V Posted June 9, 2017 Report Share Posted June 9, 2017 You need this, for a 308 - right here: http://www.brownells.com/gunsmith-tools-supplies/rifle-tools/wrenches/ar-15-barrel-extension-wrench-prod12729.aspx I'm pretty sure Brownell's sells a 308 version. Quote Link to comment Share on other sites More sharing options...
washguy Posted June 9, 2017 Report Share Posted June 9, 2017 Are you sure ? His Barrel turned out of the Barrel Extension , so how would this thing help ? Heck no I aint sure but if you read the blurb doesn't it say 14 minutes ago, survivalshop said: The upper receiver is then slid onto the rod and the rod’s integral splines enter the barrel extension and secure the barrel extension from turning. This allows all the torque from barrel nut wrenches to go directly into the barrel extension Quote Link to comment Share on other sites More sharing options...
98Z5V Posted June 9, 2017 Report Share Posted June 9, 2017 Yep, same tool, 308 version, at Brownell's: http://www.brownells.com/gunsmith-tools-supplies/rifle-tools/wrenches/308-ar-barrel-extension-wrench-prod72392.aspx Quote Link to comment Share on other sites More sharing options...
98Z5V Posted June 9, 2017 Report Share Posted June 9, 2017 Brownell's makes their own version of a reaction rod, in a way,but it's got a 1/2" ratchet driver in the end. I can't find it on Brownell's website, but PA has it. This would work for installing an extention. http://www.primaryarms.com/308-ar-barrel-extension-torque-tool-100571 Quote Link to comment Share on other sites More sharing options...
survivalshop Posted June 10, 2017 Report Share Posted June 10, 2017 38 minutes ago, washguy said: Are you sure ? His Barrel turned out of the Barrel Extension , so how would this thing help ? Heck no I aint sure but if you read the blurb doesn't it say Sure, it will hold the Barrel Extension from turning , but the Barrel is independent of it & screwed into the Extension & the Barrel is what he unscrewed , by trying to unscrew the Muzzle Device , seems to happen a lot . Using the word Screwed a lot in this thread Sketch , getting that Gas port to align correctly may be difficult , has to be spot on, as you know . Think about sending it out to to ADCO https://adcofirearms.com Quote Link to comment Share on other sites More sharing options...
guruofhotrod Posted June 10, 2017 Report Share Posted June 10, 2017 Another option would be randall: http://ar15barrels.com/ I haven't personally done business with him yet but, he's been highly recommended to me many times by very credible individuals. Quote Link to comment Share on other sites More sharing options...
sketch Posted June 11, 2017 Author Report Share Posted June 11, 2017 Thanks again for the links! Last question inch # or foot #? I'm guessing inch but a guy once told me I had big arms for a little guy! I dropped it off with the lgs/ Smith and he didn't have the tools to get it back in line.. but I will soon. Thanks Quote Link to comment Share on other sites More sharing options...
392heminut Posted June 11, 2017 Report Share Posted June 11, 2017 Foot #, inch # is for poosies! Quote Link to comment Share on other sites More sharing options...
sketch Posted June 11, 2017 Author Report Share Posted June 11, 2017 Haha Roger that! Quote Link to comment Share on other sites More sharing options...
washguy Posted June 11, 2017 Report Share Posted June 11, 2017 23 minutes ago, 392heminut said: Foot #, inch # is for poosies! Tighten till it squeeks..and then just a lil more Wash Quote Link to comment Share on other sites More sharing options...
98Z5V Posted June 11, 2017 Report Share Posted June 11, 2017 Yep, that's 175 feet! On your barrel, Roman, you need to get that thing lined back up, and it doesn't sound like it was torqued right to begin with (or you probably wouldn't have unscrewed it taking off a muzzle device). You need to get it all lined up - which will be barrel index pin perfectly lined up with barrel gas port. That's the only way it'll be straight when installed, and have the headspace still on like it was. Rocksett that bitch on there so you never have to worry about it again. Or, Yellow or Green Loc-Tite. Both those flavors are mean as hell. Quote Link to comment Share on other sites More sharing options...
sketch Posted June 11, 2017 Author Report Share Posted June 11, 2017 I'm gonna do the "SS laser detail" when I have all the tools! Man my luck with fricken guns sometimes!! School for dummies haha. Quote Link to comment Share on other sites More sharing options...
sketch Posted June 11, 2017 Author Report Share Posted June 11, 2017 Thanks again 98 i missed the ft/lbs in your first post. You know your shits bro! Quote Link to comment Share on other sites More sharing options...
dpete Posted June 11, 2017 Report Share Posted June 11, 2017 How old is the barrel and who made it? I had the exact same thing happen to a 300 Blackout barrel that I was changing the muzzle device on and the general concensus on M4Carbine forum was that it wasn't worth the effort to try and retighten the barrel to the extension. It wasn't torqued correctly in the first place if it came loose and getting it re-torqued and having everything align perfectly is almost impossible. If the gas port was aligned with the old improperly torqued extension, how can it possibly be aligned if you get it torqued properly? I contacted the seller I bought the barrel from, explained what happened, sent them the barrel and extension for them to inspect and they sent me a new barrel. Might be worth a shot before anything alse. Quote Link to comment Share on other sites More sharing options...
washguy Posted June 11, 2017 Report Share Posted June 11, 2017 1 hour ago, dpete said: How old is the barrel and who made it? I had the exact same thing happen to a 300 Blackout barrel that I was changing the muzzle device on and the general concensus on M4Carbine forum was that it wasn't worth the effort to try and retighten the barrel to the extension. It wasn't torqued correctly in the first place if it came loose and getting it re-torqued and having everything align perfectly is almost impossible. If the gas port was aligned with the old improperly torqued extension, how can it possibly be aligned if you get it torqued properly? I contacted the seller I bought the barrel from, explained what happened, sent them the barrel and extension for them to inspect and they sent me a new barrel. Might be worth a shot before anything alse. Dpete What you are saying makes perfect sense im thinkin ! Wash Quote Link to comment Share on other sites More sharing options...
98Z5V Posted June 11, 2017 Report Share Posted June 11, 2017 There won't be any way e can get it perfectly lined up AND torqued properly. Not since it's a finished barrel with index pin drilled and inserted, and gas port drilled. Only hope for that barrel will be to get it perfectly aligned, at whatever torque that happens to be, and Rocksett the shiit out of that extension. Quote Link to comment Share on other sites More sharing options...
Matt.Cross Posted June 11, 2017 Report Share Posted June 11, 2017 It won't need dead-perfect alignment if he isn't using a gas block that integrates a sight or sighting device. As long as it's fairly close, he'll be OK. Most gas tubes will allow for a bit of side to side wiggle to accommodate gas hole (hahhaha) alignment. Quote Link to comment Share on other sites More sharing options...
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