Diamondback Firearms is proud to announce its line of DB9R rifles made entirely in the USA! Starting with the tried-and-true, U.S. Military-proven gas-impingement system and using only the highest quality components machined in Diamondbacks CNC facility. The DB9R raises the bar when it comes to features and performance when compared to others. It is compatible with Glock magazines. Chambered in 9mm, with a 4.5″ barrel, Magpul MOE Grip and Gearhead Works Tailhook Mod2 Brace.