Bootleg Carbine Gas Tube for AR-15, Stainless Steel, Black Finish, Roll Pin Included (BP-GTC-SBN)

The Bootleg Carbine Gas Tube for AR-15 is a stainless steel replacement component built to handle the demands of your upper receiver assembly. Whether you're performing routine maintenance on a worn gas tube or custom-tuning your AR platform, a quality gas tube is critical to reliable, consistent operation. Bootleg's carbine-length tube is engineered from stainless steel and finished with Salt Bath Nitriding (SBN) coating—a proven method that delivers uniform corrosion resistance and a hard black finish without the brittleness of some alternative hardening processes. This is a purpose-built part for shooters who won't compromise on durability or longevity in their builds.

Installation is straightforward thanks to the included roll pin, so you can swap it in without hunting down additional hardware. The carbine-length profile is optimized for standard AR-15 upper receivers, making it the direct replacement you need whether you're running a duty rifle, competition build, or hunting carbine. Stainless steel construction resists corrosion in field conditions and cleaned with standard solvents—no special care required. The SBN coating provides a durable, uniform protective layer that stands up to gas system heat and debris cycling over thousands of rounds.

If you're serious about your AR build quality, small components like the gas tube matter just as much as larger parts. Bootleg's reputation in the AR parts space comes from attention to material selection and finishing—not flashy marketing. This tube won't make your rifle visibly cooler, but it will make it more reliable and longer-lived, which is exactly what you want in a gas tube.

Key Features

• Stainless steel construction for corrosion resistance and durability
• Salt Bath Nitriding (SBN) coating for uniform black finish and enhanced hardness
• Carbine-length profile for standard AR-15 upper receivers
• Roll pin included—no additional hardware required

Specifications

Frequently Asked Questions

Is this gas tube compatible with any AR-15 upper receiver?

This is a carbine-length gas tube designed for standard AR-15 upper receivers. Carbine-length systems are the most common profile, but verify your upper receiver is not a mid-length or rifle-length system before ordering. If you're unsure, check your upper's original gas tube length or consult your upper manufacturer.

What's included in the box?

The gas tube comes with a roll pin, so you have everything needed to install it into your upper receiver. No additional fasteners required.

How does Salt Bath Nitriding (SBN) compare to other finishes?

SBN is a surface hardening process that creates a uniform protective layer on the stainless steel, improving wear and corrosion resistance. It's a proven finish for AR parts that must withstand gas system heat and debris without becoming brittle or chipping like some other hardening methods.

Do I need special tools to install this gas tube?

Basic AR upper assembly tools are all you need—a roll pin punch, hammer, and vice (or upper receiver vise block). Standard gunsmith or armorer-level skill will get you through installation.