The Primary Weapons Systems A5 Enhanced Buffer Tube is a purpose-built upgrade for AR-15 and M4 rifles that use the A5 buffer system. Machined from quality aluminum to mil-spec dimensions, it provides a rigid, stable interface for your stock while helping maintain consistent buffer spring compression for smoother cycling and improved reliability.

This buffer tube is ideal for builders and shooters who want a dependable foundation for range use, training, or general-purpose rifle setups without adding unnecessary weight. Its enhanced design supports better recoil management and long-term durability, making it well suited to high round-count use. The A5 configuration offers a refined feel during operation, reflecting Primary Weapons Systems’ focus on thoughtful engineering and practical performance.

• Manufacturer: Primary Weapons
• Model: A5 Enhanced Buffer Tube
• Part Type: Buffer Tube
• Platform: AR-15/M4 A5 Buffer System
• Material: Aluminum
• Specification: Mil-Spec
• Design: Enhanced for smoother cycling and improved reliability