Product Description
The TNTE XM177/GAU-5 Flash Hider & Grenade Ring is reproduction piece for your Retro carbine build. This flash can has wrench flats. The bore of the flash can has a open bore. The rear is chamfered to align the crush washer or shims (not included). The XM177 Flash Hider fits 1/2-28 threads and are machined from 4140 heat treated steel plus it has a durable QPQ finish. Flash Hider overall length is 4.3" Weight is 6.6 oz.
The shortest length barrel you can use with these and be legal for OAL is 12.5". Anything shorter after pin and weld will be an SBR. To correctly measure OAL you must insert a rod down the bore until it makes contact with the bolt face. DOES NOT INCLUDE A CRUSH WASHER.
XM-177 Flash Hider
QPQ Black Nitride Finish
4140 heat treated steel
1/2x28 thread
with wrench flats
3/32" dimpled for easy starting for drilling
