LBE Unlimited Rifle-Length Gas Tube — 304 Stainless Steel — AR-15 (Model ARGTR, UPC: 765857617534)

Upgrade your full-length AR-15 build with a precision-formed, corrosion-resistant gas tube engineered for dependable gas flow and repeatable cycling. The LBE Unlimited ARGTR Rifle-Length Gas Tube is manufactured from 304 stainless steel to deliver long service life, dimensional stability under heat, and reliable operation in rifle-length gas systems. Whether you’re assembling a carbine, patrol rifle, or competition gun, the ARGTR provides the correct timing and rugged construction your upper receiver needs.

Built for Reliability and Longevity

The gas tube is a small but mission-critical component of any direct-impingement AR platform. The ARGTR is formed from 304 stainless steel for superior corrosion resistance and heat tolerance compared with mild steel alternatives. Its smooth internal bore minimizes carbon buildup and supports consistent gas flow to the bolt carrier group (BCG), helping preserve cycling reliability and reduce maintenance intervals.

Key Features & Benefits

• Material: 304 stainless steel for excellent corrosion resistance and thermal stability.

• Length: Rifle-length — designed for rifle-length gas systems where the gas port is positioned farther down the barrel.

• Precision Forming: Accurately sized and end-flared for secure fitment and reliable roll-pin retention.

• Durable Finish: Natural stainless surface resists pitting and rust in harsh environments or long-term storage.

• Drop-In Replacement: Simple swap for worn or damaged rifle-length tubes — no modification required for standard AR-15 uppers.

• Consistent Gas Timing: Proper length and alignment ensure correct dwell time and gas pulse for reliable cycling across ammunition types.

• Low Maintenance: Smooth bore eases carbon removal during routine cleaning.

Compatibility & Application

The ARGTR is intended for AR-15 uppers that use a rifle-length gas system. Typical applications include:

• Full-length barrel AR-15 builds (rifle gas system)

• Precision and match rifles where consistent gas flow improves reliability

• Duty rifles and patrol carbines configured with rifle-length gas ports

• Builders replacing a worn or corroded gas tube with a long-lasting stainless upgrade

Confirm your upper receiver/barrel gas port location and intended gas system length before purchasing. Rifle-length gas tubes will not function correctly in pistol-length or carbine-length systems.

Installation & Armorer Tips

• Safety First: Always clear the firearm and verify it is unloaded before any installation.

• Orientation: Slide the gas tube through the gas block and align the roll-pin hole before driving the roll pin. Confirm correct indexing to the gas port.

• Roll Pin Installation: Use the appropriate roll-pin punch and support to install the roll pin squarely — avoid bending the tube.

• Gas Block Fitment: Ensure your gas block seats flush and secures the gas tube per the block manufacturer’s instructions. Check set screws or clamp hardware for proper torque.

• Function Check: After installation, perform a full function check and a short live-fire verification to confirm proper cycling and gas timing. If you experience over-gassing or under-gassing issues, inspect the tube alignment, gas block seating, and gas port condition.

Maintenance & Care

• Periodically inspect the gas tube for dents, kinks, or excessive carbon accumulation.

• Use appropriate carbon-removal brushes and solvents to clean the internal bore during routine maintenance.

• Replace the gas tube if you detect deformations, splits, or compromised roll-pin retention.

• Stainless construction reduces corrosion risk, but routine cleaning and proper storage extend service life.

Why Choose the LBE Unlimited ARGTR?

Small components make big differences. The LBE Unlimited ARGTR Rifle-Length Gas Tube offers precision manufacturing, a corrosion-resistant 304 stainless construction, and consistent gas timing—factors that directly affect rifle reliability and cyclic function. It’s an excellent choice for builders, armorers, and shooters who expect dependable performance in long-service and high-use scenarios.

Technical Specifications

• Model: ARGTR

• Manufacturer: LBE Unlimited

• UPC: 765857617534

• Material: 304 Stainless Steel

• Type: Rifle-Length Gas Tube (AR-15)

• Finish: Natural stainless (polished/bright)

• Compatibility: Standard AR-15 rifle-length gas systems and gas blocks that accept a rifle-length tube

• Included: 1 × LBE Unlimited Rifle-Length Gas Tube (roll pin typically sold separately — check your parts kit)

Final Thoughts

If you’re building a rifle-length AR-15 or replacing an aging gas tube, the LBE Unlimited ARGTR is a straightforward, high-value upgrade. Precision-formed 304 stainless steel construction means improved corrosion resistance, better heat tolerance, and lower maintenance — all contributing to a more reliable, long-lasting gas system. Trust the small parts to deliver consistent performance so you can focus on accuracy, mission readiness, and range time.

The End