THE BEST SIDE OF KNIGHTS ARMAMENT SR-15 16 UPPER

A viton o-ring helps prevent extractor vibration and raise, and a tough chrome exterior simplifies cleansing and routine maintenance. The five.56mm 3-Prong Flash Eliminator interferes with propellant gas combustion forward of your muzzle to drastically minimize flash signature, will likely not ring on firing or when struck, and it is compatible Usi