Wilson Combat TR300SBRPG8RT7 8" 300 Blackout Match Grade Barrel - Stainless Bead Blasted Finish, 416R Steel, SBR Tactical Profile, Threaded, 1:7 Twist for AR-15

The Wilson Combat 8" 300 Blackout match-grade barrel is purpose-built for AR-15 short-barreled rifle builds where compact size and close-quarters capability matter. Machined from 416R stainless steel and finished with a durable bead blast, this SBR tactical profile barrel ships with a 5/8x24 threaded muzzle ready for suppressors or muzzle devices. Whether you're running subsonic loads through a can or pushing standard rounds downrange, this barrel's 1:7 twist stabilizes the full range of 300 Blackout ammunition.

Wilson Combat engineered this barrel around the pistol-length gas system standard, so you'll have no trouble sourcing compatible parts from the wider AR aftermarket. The .750-inch gas journal accepts most gas blocks without fitment hassle, and the M4-style feed ramps ensure reliable feeding across quality ammunition. This is a no-compromise component for builders who want match-grade accuracy in a fighting-length package—the kind of precision barrel you'd expect from a shop that's been building rifles for serious shooters since day one.

Before you assemble your SBR, remember that federal law requires NFA registration on Form 1; you'll want to ensure your lower is registered before you finalize the build. Once it's legal and locked in, you've got a stout, compact 300 Blackout that handles both subnose and full-power loads with the accuracy Wilson Combat is known for.

Key Features

• Match-grade accuracy in a compact 8-inch SBR tactical profile
• 416R stainless steel construction with bead blasted corrosion-resistant finish
• Optimized for 300 Blackout subsonic and standard ammunition with 1:7 twist rate
• 5/8x24 threaded muzzle—ready for suppressors and muzzle devices
• Pistol-length gas system with .750-inch gas journal for broad parts compatibility
• M4-style feed ramps for reliable feeding

Specifications

Frequently Asked Questions

Will this barrel work with my suppressor?

Yes. The 5/8x24 threaded muzzle is the industry standard for suppressor attachment. This barrel is specifically optimized for use with suppressors and subsonic 300 Blackout loads.

What gas system does this barrel use?

This barrel is built around a standard pistol-length gas system with a .750-inch gas journal, which is compatible with the vast majority of aftermarket AR gas blocks and components.

Is this barrel registered as an NFA firearm when I buy it?

No. As a barrel component alone, it is not an NFA item. However, once you assemble it into a complete short-barreled rifle (barrel plus registered receiver), that rifle must be registered on ATF Form 1 before it is legal to possess.

What ammunition does the 1:7 twist rate stabilize?

The 1:7 twist is appropriate for the full range of 300 Blackout ammunition, including both subsonic and standard pressure loads.