THE ULTIMATE GUIDE TO KNIGHTS ARMAMENT SR-15 CQB 11.5 UPPER

A viton o-ring helps prevent extractor vibration and lift, and a hard chrome exterior simplifies cleaning and servicing. The 5.56mm 3-Prong Flash Eliminator interferes with propellant gas combustion forward of the muzzle to noticeably lessen flash signature, will likely not ring on firing or when struck, which is compatible Together with the Knight