Compact and easy to transport, the DDM4 PDW is the kind of AR15 style pistol you can rely on for home and personal defense...plus it's a ton of fun to shoot. The 7 inch 300 Blackout Cold Hammer Forged barrel keeps subsonic loads subsonic and provides great ballistics for a shorter barrel. The PDW, with an overall length of 20.75 inches, comes equipped with the Maxim Defense CQB Pistol Brace, which gives you the adjustments needed to more comfortably shoot your AR pistol.