The Hi-Point HP-15 Pistol in .300 Blackout (brand part no. HP15P-300BLK) is Hi-Point’s black 10.5-inch AR pistol chambered for the subsonic-capable .300 AAC Blackout cartridge. It has a 1:7 twist barrel, a pistol-length gas system and a 5/8×24 threaded muzzle, which is the thread pattern used by most .30 caliber muzzle devices. A 9.5-inch M-LOK handguard and a Hi-Point brace complete the package. The upper and lower are forged 7075-T6 aluminum, and a 30-round magazine is included. It is a good fit for shooters who want a short .300 Blackout pistol for a suppressor build or range use.

Key Specifications

• Chambering is .300 AAC Blackout, a cartridge that runs both supersonic and subsonic loads.
• Barrel length is 10.5 inches, a good length for the cartridge in a pistol.
• The twist rate is 1:7, which stabilizes common .300 Blackout bullet weights.
• The muzzle is threaded 5/8×24, the standard thread for many .30 caliber muzzle devices and suppressors.
• The gas system is pistol length, matched to the short barrel.
• The handguard is a 9.5-inch M-LOK design, with room for lights and grips.
• The pistol includes a Hi-Point brace, which gives the short pistol a stable shooting platform.
• The barrel is 4150 chrome moly vanadium and the receivers are forged 7075-T6 aluminum.
• The safety is a 90-degree manual selector, with a clear on and off position.
• Weight unloaded is 4.25 pounds, and a 30-round magazine is included.

Frequently Asked Questions

What muzzle thread does the .300 Blackout pistol use? It is threaded 5/8×24, which differs from the 1/2×28 thread on Hi-Point’s 5.56 pistol models.

How does the .300 Blackout model differ from the 5.56 version? It uses a pistol-length gas system and a 5/8×24 muzzle thread, where the 5.56 pistol uses a carbine-length system and a 1/2×28 thread.

What comes with the pistol? Hi-Point lists a 30-round magazine, a cable gun lock and a breach flag with its HP-15 models. Hi-Point covers the HP-15 with a limited lifetime warranty for the original retail purchaser.

Buy the Hi-Point HP-15 Pistol, .300 Blackout, 10.5-Inch, Black

Short, light and chambered for .300 Blackout, this HP-15 is a budget way into a suppressor-ready AR pistol. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and see more AR pistols while you are here.