Combat Armory CA-15 Features The Combat Armory CA-15 is built around a billet 7075-T6 upper and lower receiver finished with Type III hard-coat anodizing that resists wear and corrosion far better than standard anodized coatings. Its 10.5 barrel is machined from 4140 chrome moly vanadium steel a material chosen for its strength and heat resistance under sustained fire and carries a 1:7 twist rate suited to stabilizing a wide range of 5.56mm bullet weights. The M4 feed ramps and MIL-STD forward assist and dust cover keep the action reliable and familiar to anyone who has run a standard AR platform. A pistol length gas system paired with a .750 low-profile gas block times the action for the shorter barrel while the A2 flash hider on the muzzle reduces visible signature on follow-up shots. Handling comes from a 10 free-float M-LOK handguard slim enough for a comfortable grip while offering mounting slots at multiple clock positions for lights foregrips and other accessories. A Picatinny rail on the flat-top upper gives the CA-15 a ready mounting surface for a red dot or magnified optic without any additional machining. The pistol buffer tube and MIL-STD fire control components round out a build meant to feel like a duty-grade AR rather than a stripped-down clone. Shipping with one 30-round 5.56 magazine the Combat Armory CA-15 gives shooters a maneuverable mil-spec pistol ready for the range or home defense straight out of the box. Combat Armory CA-15 Specifications Manufacturer: Combat Armory Model: CA-15 Type: Semi Auto Handgun Caliber: 5.56 Capacity: 30+1 Barrel Length: 10.5 Barrel Material: 4140 Chrome Moly Vanadium Barrel Profile: M4 Chamber: 5.56mm Gas System: Pistol Length Gas Block: .750 Low-Profile Muzzle Device: A2 Flash Hider Upper Receiver Material: Billet 7075-T6 Upper Receiver Finish: Type III Anodizing Handguard: 10 M-LOK Free Float Optic Ready: Picatinny Rail Magazines Included: 1 Available At: GrabAGun