Mid Length 11.75" With Roll Pin

For the AR-15 builder seeking a reliable and correct gas system length for a mid-length setup, this 11.75″ gas tube with roll pin is an essential component. This specific part from Miami Shooters Supply ensures proper cycling by connecting your low-profile or standard block to your rifle’s bolt carrier group. It’s a small but critical piece for any functional build or repair, and we ship it fast so your project doesn’t stall.

Key Features

• Precision-machined from high-tensile strength 4130 or 4140 steel for durability under repeated heat and pressure cycles.
• Includes a properly sized roll pin for a secure installation into your gas block.
• Features a hard chrome interior lining to resist carbon fouling and extend service life.
• Designed for a true mid-length gas system, providing smoother recoil impulse than carbine-length systems on barrels 14.5″ and longer.
• The 11.75″ length is the industry-standard dimension for mid-length AR-15 configurations.

Built For

This mid-length gas tube is built for the shooter assembling a new rifle with a 14.5″ to 16″ barrel or replacing a worn component on an existing mid-length AR-15. It’s the go-to choice for builders who value the improved reliability and softer shooting dynamics that the mid-length gas system offers over carbine-length.

Specifications

• Type: Mid-Length Gas Tube
• Overall Length: 11.75 inches
• Material: Steel with Hard Chrome Lining
• Compatibility: Standard AR-15/M4 platform (Milspec diameter)
• Included Hardware: 1x Roll Pin

FAQ

Is this gas tube compatible with any low-profile gas block?
Yes, this is a standard diameter milspec gas tube. It will fit any commercially available low-profile or standard front sight post gas block designed for the AR-15 platform.

Why choose a mid-length gas system over carbine-length?
The mid-length system, used with this 11.75″ tube, places the gas port further down the barrel. This results in lower pressure at the port, which translates to less wear on internal parts, reduced felt recoil, and often improved reliability with a wider range of ammunition.