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Posted: 1/8/2006 12:18:22 PM EDT
| what's the thread on the RRA/Colt 9mm barrels? |
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click here Muzzle Threading: Muzzle is threaded 1/2x36 threads per inch on 9mm barrels (at RRA/Colt factory) as opposed to the 1/2x28 tpi use on 5.56 Olympic will thread 9mm only in 5/8x24 by default or 1/2x28 when asked. Other pistol caliber barrels are threaded 5/8x24. (Per Mark Budam at Triple Break Products) Barrel Sizes: 9mm postban RRA barrels measure .718" diameter at muzzle, .750" at front sight, and .675" under handguard. |
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