Maxim Defense MXM47838 Roller Delayed Blowback System Buffer CQB Fits Most 9mm Luger AR-15/AR-9 (Maxim Defense CQB Buffer Tube Only)

Maxim Defense MXM47838 Roller Delayed Blowback System Buffer CQB fits most 9mm Luger AR-15 AR-9. The roller-delayed system converts a straight blowback AR-9 into a more efficient operation, reducing recoil and increasing accuracy. The CQB length RDB system works with Maxim Defense CQB length buffer tubes only, ensuring a seamless fit and maximum performance. This system provides a smoother cycling action and easier suppression.