The DPMS Firearms Mil Spec Rec Ext Tube 6 Pos is a mil-spec diameter receiver extension designed to provide a solid, reliable foundation for AR-15 collapsible stocks. Precision machined to mil-spec dimensions, this six-position tube offers smooth stock adjustment and a secure interface with compatible mil-spec carbine stocks, making it a dependable choice for new builds or upgrades.

This receiver extension tube is ideal for AR-15 owners looking to refresh a worn buffer tube or complete a new rifle configuration with proven, mil-spec geometry. Its durable black finish helps resist wear from regular range sessions and training use, while the six-position design lets shooters fine-tune length of pull for comfort and control. Backed by the reputation of DPMS Firearms for practical, hard-use components, it’s a straightforward, purpose-built part for your next project.

• Manufacturer: DPMS
• Model: Mil Spec Rec Ext Tube 6 Pos
• Buttstock Fit: Mil-Spec
• Make Model Fit: AR-15, Universal
• Buffer Tube Type: Rifle
• Color: Black
• Material: Steel