UTG Pro TLU001 Mil-Spec AR-15 Buffer Tube 6-Position Black

The UTG Pro TLU001 Receiver Extension Tube delivers reliable stock positioning and cycling performance for AR-15 platform rifles. This mil-spec buffer tube maintains consistent lockup with standard carbine stocks while providing smooth adjustment across all six positions.

What Makes This Different

Unlike commercial buffer tubes with their larger diameter threads, this mil-spec design ensures compatibility with the widest range of aftermarket stocks and accessories. The hardcoat anodized finish provides superior corrosion resistance compared to standard Type II anodizing. Precision-machined aluminum construction maintains dimensional consistency that affects bolt carrier group timing and reliability.

Key Features

• Mil-spec 1.146" outer diameter for universal stock compatibility
• 6061-T6 aluminum construction with hardcoat anodized finish
• Six indexed positions with positive detent engagement
• Standard carbine buffer spring and buffer compatibility
• Precision-threaded receiver extension matches TDP specifications
• Anti-rotation tabs prevent buffer tube movement during firing
• Matte black finish reduces glare and matches most rifle configurations

Field performance depends on proper buffer tube installation and torque specifications. The mil-spec threading ensures consistent headspace when properly installed with appropriate castle nut torque. This buffer tube functions reliably across temperature extremes and maintains smooth stock adjustment even after extended use. The hardcoat anodizing resists wear from repeated stock adjustments and environmental exposure.

Technical Specs

• Material: 6061-T6 aluminum alloy
• Finish: Type III hardcoat anodized black
• Thread: 1-3/16"-16 TPI mil-spec
• Outer diameter: 1.146 inches
• Length: Approximately 7.25 inches
• Weight: 4.2 ounces
• Positions: 6 indexed adjustment points
• Compatibility: Mil-spec AR-15/M4 carbine stocks

This buffer tube provides the foundation for reliable semi-automatic function while maintaining the dimensional standards that ensure long-term durability. Professional armorers and builders choose mil-spec components for their proven compatibility and consistent performance across different manufacturers.