HKP Blog

Today we are installing a Pistol Brace or Stock Adapter for the HK 416 .22lr Pistol. As always, begin by removing the magazine and checking that the chamber is clear before handling. Next, unscrew the end cap from the back of the 416 pistol. Once this is done, leave the plate or buttstock tube lock (this is the formal name for it) – #15 on your bench mat – in place and install the 416 .22 stock or brace adapter on top of it. Take the screw that comes stock with your pistol end cap and drop it …