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Posted: 8/17/2015 7:11:39 PM EDT
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How do most here get the correct torque on their muzzle device?
I have a AAC 18T which takes a 7/8" wrench but can not find a crow foot wrench that size outside of a complete set. |
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Here you go OP.
I bought the whole kit though. It was almost the same price. $4 more I think I have a 7/8. Shoot me a PM and we can figure out how to get it to you. |
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Quoted:
Here you go OP. I bought the whole kit though. It was almost the same price. $4 more I think I have a 7/8. Shoot me a PM and we can figure out how to get it to you. Thanx....my torque wrench has a 1/2" drive and that is a 3/8" drive. I did purchase a 7/8" 12" long open end wrench but don't know how tight to crank it. I am a fairly big guy but have no idea what kind of torque I can deliver to a wrench. Anyone have any idea what the average persons arm can do with a open end wrench? |
| USMC tech manual spec is 15-20 ft lbs and use a peel washer to get to TDC of middle or third slot. Remove the peel sections to get there. Really don't need a torque wrench, use your combo barrel wrench until it's snug. Or you can file a crush washer so you can get to TDC without over tightening. YMMV |
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USMC tech manual spec is 15-20 ft lbs and use a peel washer to get to TDC of middle or third slot. Remove the peel sections to get there. Really don't need a torque wrench, use your combo barrel wrench until it's snug. Or you can file a crush washer so you can get to TDC without over tightening. YMMV It sounds like you're reading a tech manual from early A2 era, not instructions for AAC suppressor mount. AAC comes with it's own shim kit, I'm pretty sure a crush washer is a big no-go. You can read the instructions on AAC's webpage. http://www.advanced-armament.com/assets/images/pdf/manuals/Brakeout_Compensator_Installtion_Instructions.pdf |
| I have installed several. I have never used a torque wrench. A crush washer is going to keep you from over-torquing until it bottoms out. For shims, I snug to the recommended clocking and tighten down to the point of time. If it hasn't reached timing, and it feels like it binding up too much, I back it off and either remove a shim, or use a thinner shim stack. |
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I checked my sears and they just have complete sets. Quoted:
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In that size singles should be available from Sears and others. I checked my sears and they just have complete sets. Sears.com, amazon.com, harbor freight and presumably a number of others. The whole set at Sears is $40. Most of these in that size range are going to be 3/8” drive. If all you have is a ½” drive torque wrench, then get an adaptor or get a 3/8” drive torque wrench. Since you apparently don’t normally need crowfoot wrenches the cheap piece of crap at Harbor Freight is likely more than adequate for your purposes. |
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It sounds like you're reading a tech manual from early A2 era, not instructions for AAC suppressor mount. AAC comes with it's own shim kit, I'm pretty sure a crush washer is a big no-go. You can read the instructions on AAC's webpage. http://www.advanced-armament.com/assets/images/pdf/manuals/Brakeout_Compensator_Installtion_Instructions.pdf Quoted:
Quoted:
USMC tech manual spec is 15-20 ft lbs and use a peel washer to get to TDC of middle or third slot. Remove the peel sections to get there. Really don't need a torque wrench, use your combo barrel wrench until it's snug. Or you can file a crush washer so you can get to TDC without over tightening. YMMV It sounds like you're reading a tech manual from early A2 era, not instructions for AAC suppressor mount. AAC comes with it's own shim kit, I'm pretty sure a crush washer is a big no-go. You can read the instructions on AAC's webpage. http://www.advanced-armament.com/assets/images/pdf/manuals/Brakeout_Compensator_Installtion_Instructions.pdf Yep my bad, missed the AAC break info. .  When I put my OPS model 12 brake on, I also used Rocksett, fun times trying to remove the brake once the stuff has dried.
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