The One Horse OH-15 Complete Rifle 15 M-LOK .300 BLK is a modern AR-style platform built around a 16-inch threaded barrel and a slim 15-inch M-LOK handguard. Chambered in .300 AAC Blackout, it pairs a SOCOM-profile barrel with a pistol-length gas system for dependable cycling and smooth recoil. A standard charging handle, A2 grip, and One Horse M4 6-position stock round out a straightforward, easy-to-run configuration that stays familiar for AR shooters.

This OH-15 is well suited for range practice, training, and general-purpose defensive use where a controllable, soft-shooting rifle is preferred. The extended M-LOK handguard offers generous space for lights, slings, and other accessories, while the 30-round magazine keeps you shooting longer between reloads. Backed by One Horse’s focus on practical design and solid construction, this rifle delivers a clean, reliable .300 BLK setup without unnecessary frills.

• Manufacturer: One Horse
• Model: OH-15 Complete Rifle
• Caliber: .300 AAC Blackout
• Action: Semi-Auto
• Barrel Length: 16 in.
• Number of Magazines: 1
• Capacity: 30
• Threaded Barrel: Yes
• What's In The Box: Rifle, 30-round magazine
• Weight: 7.14 lbs
• Length: 36 in.