UTG PRO MIL 6-Position Receiver Extension Tube – AR-15/M4 Compatible

The UTG PRO MIL 6-Position Receiver Extension Tube provides a mil-spec platform for adjustable stock systems on AR-15 and M4-pattern rifles. Precision-machined with six indexed positions, this extension tube allows shooters to customize length of pull for different shooting positions, body armor, or multiple users while maintaining consistent cheek weld and sight alignment.

Manufactured from 7075-T6 aluminum with a hard-anodized black finish for corrosion resistance and durability. Features standard mil-spec diameter (1.14") for compatibility with mil-spec buffer tubes and stocks. Includes castle nut and lock plate for secure installation. Threading accepts standard carbine buffer and spring assemblies.

• Type: Receiver Extension Tube (Buffer Tube)
• Compatible Firearms: AR-15, M4, and mil-spec AR platforms
• Material: 7075-T6 Aluminum
• Finish: Hard-anodized Black
• Adjustable: Yes – 6 positions
• Installation: Requires armorer's wrench and basic gunsmithing knowledge; includes castle nut and lock plate