TOP KNIGHTS ARMAMENT SR-15 CQB 11.5 UPPER SECRETS

A viton o-ring prevents extractor vibration and elevate, and a hard chrome exterior simplifies cleaning and routine maintenance. The 5.56mm 3-Prong Flash Eliminator interferes with propellant fuel combustion forward of the muzzle to substantially decrease flash signature, will likely not ring upon firing or when struck, and it is appropriate with t