The CQB MRP® Defender Model Piston 12 features:

Close Quarter Battle Monolithic Rail Platform Upper Receiver.
12" Chrome Lined 1:7" Twist H-Bar Contour 5.56 Barrel.
Piston Semi-Auto Bolt Carrier Group.
Tactical Charging Handle Assembly.
Defender Lower with SOPMOD Buttstock (LMT's logo on lower is for photography purposes only and will not be on the lower when purchased).
Standard Trigger Group.
Tactical Adjustable Rear Sight.
Tactical Front Sight.
(1) Thirty Round Magazine.
(2) Heavy Duty Push Button Swivels (Included as of 2011 orders).
Torque Wrench / Driver.
(3) Rail Panels.
Ships with a sling, and Operators Manual.


    • Piston Operated.
    • Overall length with SOPMOD collapsed: 29".
    • Overall length with SOPMOD extended: 32".
    • A2 birdcage compensator 1/2 X 28 thread pitch.
    • Low profile gas block.
    • Cryogenically treated barrel to increase accuracy, barrel life and easier cleaning.
    • Electronically tested and recorded trigger pull.