Combat Armory CA-15 Pistol Features The Combat Armory CA-15 pistol is built around a 7.5 inch 4140 chrome moly vanadium barrel chambered in 5.56mm finished in melonite for corrosion resistance and cut with a 1:7 twist rate to stabilize a wide range of bullet weights. A pistol-length gas system paired with a .750 low profile gas block keeps the gun cycling reliably in its shorter configuration. An A2 flash hider threaded 1/2x28 caps the muzzle reducing visible flash while leaving the door open for other muzzle devices. The billet 7075-T6 upper receiver follows M4 Mil-Spec dimensions with a forward assist and dust cover and carries a Picatinny rail for mounting optics. Both the upper and lower receivers are machined from billet 7075-T6 aluminum and finished with type III hard-coat anodizing for a durable long-lasting black finish. The 7 inch free float M-LOK handguard uses a thin rail profile keeping the gun s overall weight and bulk down while still providing ample room for lights grips or other accessories. Mil-Spec components run throughout the build including the charging handle safety and fire control group ensuring compatibility with standard AR-15 parts. Shipping with one 10 round 5.56 magazine the Combat Armory CA-15 gives shooters a compact well-built pistol ready to run right out of the box. Combat Armory CA-15 Pistol Specifications Manufacturer: Combat Armory Model: CA-15 Pistol Type: AR Pistol Caliber: 5.56mm Capacity: 10 Rounds Barrel Length: 7.5 Barrel Material: 4140 Chrome Moly Vanadium Barrel Finish: Melonite Twist Rate: 1:7 Gas System: Pistol Length Muzzle Device: A2 Flash Hider Handguard: 7 Free Float M-LOK Receiver Material: Billet 7075-T6 Receiver Finish: Type III Anodizing Optic Ready: Picatinny Rail Available At: GrabAGun