Vltor A5 Receiver Extension Tube

The VLTOR A5 Receiver Extension Tube is a 7-position buffer tube engineered for AR-15 and M4 platforms that prioritize ergonomic stock positioning and recoil management. This receiver extension measures 8.1 inches in length and operates on mil-spec dimensions, making it compatible with standard collapsible stocks while accommodating the longer travel of A5-series buffer systems. The black finish and robust construction make it suitable for duty, competition, and training applications where reliable carbine setup is critical.

A5 receiver extensions are longer than traditional M4 tubes, providing extended buffer tube travel that works with heavier A5 buffers to reduce felt recoil and cycle rate control. The 7-position design allows shooters to dial in optimal cheek weld and sight picture alignment relative to optics or iron sights mounted on their upper receiver. Weighing only 0.31 pounds, this tube adds minimal weight while maintaining the structural integrity required for repeated firing and tactical manipulation. Beyond AR-15 platforms, the A5 extension tube also serves as a drop-in replacement for AR-10 rifle builds, expanding its utility across the modern sporting rifle ecosystem.

Operators and armorers choose the VLTOR A5 tube when building or upgrading rifles intended for precision shooting, patrol readiness, or specialized training where stock adjustment range and recoil impulse matter. Law enforcement and military units favor A5 systems for primary carbines because the increased buffer mass and tube length smooth the firing cycle without excessive wear on internal components. Whether configuring a duty rifle, match carbine, or backup platform, this receiver extension provides the flexibility to achieve proper ergonomics across shooters of different statures and shooting styles.