Midwest Industries MISTAPSFPB: For use with Gear Head Works Tailhook Pistol Brace. Heavy duty side folding mechanism constructed from 4140 steel. Full length locking lug for maximum strength. Solid positive lock up in both positions. Steel clamp with large surface engagement. Can be configured to right or left folding. Modular design can accommodate different butt plate attachments. Features skeletonized aluminum lightweight beam that is hard coat anodized. Adds 7 inches to the length of the firearm in the open position. Adds of an inch to the firearm in the folded position. Complete assembly weight is 13oz. Steel parts are mag phosphate finished