The Combat Armory CA-15 .300 Blackout Pistol (brand part no. CA15.10SR.300P) is built to Mil-Spec on billet 7075-T6 aluminum upper and lower receivers, hard-coat anodized black, with every component installed to Mil-Spec tolerances. Combat Armory chambers this pistol-length build in .300 Blackout with a 10.5-inch 4140 chrome moly vanadium barrel under a melonite finish, topped with a slim M-LOK handguard and free-float design. It ships with a bare pistol receiver extension and no arm brace or stock installed, so the buyer chooses their own configuration. Among AR pistols, the CA-15 suits budget-minded .300 Blackout shooters who want a genuine Mil-Spec build they can outfit to their own preference.

Key Specifications

• The chambering is .300 AAC Blackout.
• The barrel length is 10.5 inches.
• The barrel material is 4140 chrome moly vanadium steel.
• The barrel finish is Melonite, and the profile is M4.
• The gas system is carbine length with a 0.750-inch low-profile gas block.
• The muzzle device is an A2 flash hider.
• The upper and lower receivers are billet 7075-T6 aluminum, Type III hard-coat anodized.
• The handguard is a free-float M-LOK slim rail.
• It ships with a 30-round magazine.
• The receiver extension is a bare pistol buffer tube, with no brace or stock installed.

Frequently Asked Questions

Does this pistol come with a brace or stock? No, it ships with a bare pistol buffer tube and no brace or stock attached.

Can I add a stock later? Adding a shoulder stock to a pistol-configured receiver creates a short-barrel rifle, which requires prior ATF Form 1 approval and NFA registration before the change is made.

What is the barrel material and finish? The barrel is 4140 chrome moly vanadium steel with a Melonite finish for wear resistance.

Buy the Combat Armory CA-15 .300 Blackout Pistol

A genuine Mil-Spec billet build in .300 Blackout, ready for the shooter’s own brace or grip setup, is exactly what this CA-15 delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.