Bayonet Ring Adapter
The Tacticool22 Bayonet Barrel Adapter works on 16" AR's with a carbine length gas system to prevent the bayonet from rattling around. At less than an ounce, this adapter is very lightweight. This fits standard 1/2-28 threads, such as the S&W; M&P15; in .223/5.56. It is also easy to put on. Just remove your FH and crush washer, slip on the adapter and add a new crush washer, and then screw on your FH or other muzzle device, like our AM1 brake. Bayonets that will work include the M7, M9, M10, M11, and USMC OKC-3S.