Brownells Ar-15 Gas Tube Pistol Length Black Nitride

The Brownells AR-15 gas tube in pistol length delivers a corrosion-resistant, durable replacement component for your short-stroke piston AR build. This stainless steel tube features a black nitride finish that boosts wear resistance and fatigue strength while keeping your rifle looking sharp. Whether you're running a pistol-length gas system on a 7.5" or 10.5" upper, this tube handles the job without the surface degradation that can plague bare steel components.

Pistol-length gas tubes are the shortest configuration in the AR ecosystem, designed specifically for compact uppers where a traditional carbine or mid-length system won't fit. The black nitride coating isn't just eye candy—it's a proven treatment that increases hardness and corrosion resistance, making it ideal if your rifle sees action in wet conditions or sits in the safe between outings. The stainless steel base material adds another layer of durability underneath the finish.

Installation is straightforward on any piston-driven AR platform, though keep in mind that the roll pin securing the tube is sold separately. If you're building from scratch or replacing a worn tube, you'll want to source that hardware alongside this component. This is a no-frills, purpose-built part from a maker with deep roots in the AR community—exactly what you need if you're serious about your build.

Key Features

• Stainless steel construction with black nitride finish for enhanced durability
• Increased corrosion and wear resistance compared to bare steel
• Optimized pistol length for short-stroke piston systems
• Professional-grade component trusted by builders and gunsmiths

Specifications

Frequently Asked Questions

What AR-15 upper length does a pistol-length gas tube fit?

Pistol-length gas tubes are designed for short-stroke systems, typically found on AR uppers with 7.5" to 10.5" barrels. Verify your upper's gas system length before ordering to ensure proper fit.

Do I need to buy a roll pin separately?

Yes. The roll pin is not included with this tube and must be purchased separately for installation.

What's the advantage of the black nitride finish?

Black nitride treatment increases corrosion resistance, wear resistance, and fatigue strength compared to bare or parkerized steel, while also providing an appealing blued appearance. It's a popular choice for components exposed to moisture or repeated cycling.

Is this a direct replacement for my existing gas tube?

This will replace any AR-15 pistol-length gas tube, provided your upper is configured for a pistol-length system. Double-check your current tube's length before swapping.