AR15 Pistol chambered in 300AAC. Semi-automatic compact AR-15 Pistol, 7.5 inch barrel, full MLOK rail, and handguard. The pistol includes a SB Tactical SBA3 Side Folding Brace. Capacity is 30 rounds. This AR15 Pistol’s small size makes it ideal for home defense and truck use. You have plenty of space for your optic or accessories with the MLOK rail and handguard. If you are looking for a hard hitting tactical AR15 pistol than this model from DPMS is the one you’ve been looking for!!!