This fixed stock attaches easily to most MPA 9mm Semi auto mid sized guns. It offers a sturdy stock and helps with shooting accuracy while giving it a tactical look. It is priced low enough to replace the flimsy wire stock. Works great for competition as it offers the shooter a perfectly placed cheek well to use iron sights or a red dot scope mounted to one of our side cocker uppers. Please call if any questions. (gun & other components sold separately) Addition of this item may require additional paperwork to be filed with the ATF, check with your local dealers.