$109.00This stock adapter is designed for use with the MAX-10/9 mk2 and MAX-10/45 mk2 Upper Receivers or other receivers with higher sight lines or scopes attached. Attaches to M-10/9 or M-10/45 lower receiver. Allows use of AR-15 buttstocks. 1/2" of vertical adjustment. Adapter is made from black anodized 6061 aluminum. Stock latch is made from steel.