The Smith Enterprise SOCOM 16 gas plug is an enlarged plug, specifically for the Springfield Armory SOCOM16 and other short M14/ M1a rifles. The plug is constructed of 17-4 stainless steel, and double heat treated for strength and corrosion resistance. The increased gas volume, and short length of the socom 16 plug are specifically designed to improve the function of 16" rifles, as well as clearance for using a suppressor. The increased volume of this plug is also useful when running a suppressor on longer barrels, due to the increase in gas backpressure common with suppressors. Features17-4 Stainless SteelDouble Heat Treated 45 HRC - 60 HRCBlack Corrosion Resistant FinishIncreased Volume Over Mil-Spec PlugImproved Function With Suppressors