The JE Machine Tech AR-15 Pistol Buffer Tube With Foam Tube Cap, model PS-BTP, is a precision-machined receiver extension built to Mil-Spec dimensions for AR-15 and M4 pistol platforms. Cut from durable 6061-T6 aluminum and finished in a matte black anodized coating, it provides a solid, lightweight foundation for your pistol build while the included foam cap adds a comfortable, protective surface at the rear of the tube.

This buffer tube threads directly onto any standard AR-15 lower receiver and accepts standard AR-15 buffer springs, buffers, castle nuts, and end plates, making it an easy upgrade or replacement part for existing builds. Its compact pistol-length design helps maintain a balanced feel without unnecessary weight, ideal for range use, training, or general-purpose AR pistol configurations. Consistent with JE Machine Tech’s reputation, the PS-BTP reflects careful machining and attention to fit and finish.

Key Features:

• Manufacturer: JE Machine Tech
• Model: PS-BTP AR-15 Pistol Buffer Tube With Foam Tube Cap
• Color: Black
• Product Type: Pistol Buffer Tube / Receiver Extension
• Firearm Fit: AR-15, M4
• Material: 6061-T6 Aluminum
• Finish: Type II / Type 3 Anodized
• Included Accessories: Foam Tube Cap
• Weight: 0.35 lb (4.80 oz)
• Length: 7.375 in Tube Length
• Diameter: 1 in Inner / 1.24 in Outer