This Bear Creek Arsenal complete upper (Bear Creek Arsenal part no. UAF1003300PHB7.5) is chambered in .300 Blackout on a 7.5-inch barrel with pistol-length gas, an M-LOK handguard, and a 1:7 twist built for a compact pistol-configured AR build.

Key Specifications

• Brand: Bear Creek Arsenal.
• Caliber: .300 Blackout.
• Barrel length: 7.5 inches.
• Rate of twist: 1:7.
• Gas system: pistol length.
• Handguard: M-LOK.

Frequently Asked Questions

Can I put a shoulder stock on this upper? Not without prior ATF approval. This complete upper’s 7.5-inch barrel is well under the 16-inch rifle minimum, so it must go on a pistol lower (no stock) or a Form 1-approved SBR lower to stay legal.

What gas system length does this upper use? Pistol-length gas, matched to the short 7.5-inch barrel.

Buy the Bear Creek Arsenal Complete Upper, .300 Blackout, 7.5in, Pistol Length, M-LOK

Get the Bear Creek Arsenal Complete Upper, .300 Blackout, 7.5in, Pistol Length, M-LOK from Bear Creek Arsenal, browsable in our full AR15 Uppers selection. Order from a Lubbock, TX gun shop for insured shipping.