This is the right component if you want the feel and comfort of an adjustable AR stock. It bolts to your gun and maintains a tight precision fit under rapid fire. The addition of the AR stock will greatly improve accuracy and shot grouping as it provides a firm shoulder rest and helps to balance the weapon. *Addition of this item may require additional paperwork to be filed with the ATF, check with your local dealers. This part number fits all Master Piece Arms 9mm mini pistols, 930T, & 930SST. (Weapon and other accessories sold separately) Installation instructions & allen wrench included. Works with most commercial and mil spec sized AR type rear stocks & pistol buffer tubes.