SilencerCo AC2290 Threaded Barrel 3.50" 9mm Luger, Black Nitride Stainless Steel, Fits S&W M&P Shield $143.65
Sons Of Liberty Gun Works M8911.5 M89 Drive Lock Rail 11.50" M-LOK, Black Anodized, Full Length Picatinny Top, Barrel Nut, Fits AR-15 $308.75