One Horse 300 Blackout AR-15 Barrel - Pistol Length - Medium - 7.5"

Overview

The One Horse .300 BLK barrel is a 7.5-inch AR-15 barrel designed for ultra-compact SBR and pistol builds, home defense setups, and dedicated suppressed configurations. Machined from 4150 steel with a durable black nitride finish and a medium profile, it features a pistol-length gas system tuned to provide the correct dwell time for reliable cycling of both supersonic and subsonic loads, with or without a suppressor. The 1:7 twist rate accommodates a wide range of projectile weights, including heavier 200-to-240-grain subsonic rounds. The black nitride bore finish protects against accelerated carbon fouling in suppressed use, and the muzzle is threaded 5/8x24 for direct-thread suppressor attachment.

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