MPN: RE-A5 / SP-A5


  • 7-position buffer tube (designed to use with Vltor A5 buffer and spring)
  • Positions are numbered and are visible through the witness hole from most buttstocks
  • Snag-free sliding of the stock
  • A5 buffer tube is slightly longer than the Mil-Spec buffer tube to increase performance
  • Accepts Mil-Spec buttstocks
  • Vltor patented design A5 Buffer (designed to use with Vltor A5 buffer tube)
  • Castle nut has three notches for staking


  • Material: 7075 T6 aluminum
  • Weight:
    • Buffer Tube: 4.3 oz.
    • Buffer: 5.3 oz.
  • Finish: Hard coat anodized


  • AR-15


  • A5 Buffer Tube Kit:
    • 1x A5 Buffer Tube
    • 1x A5 Buffer
    • 1x Buffer Spring
    • 1x Locknut (Castle Nut)
    • 1x End Plate
  • A5 Buffer and Spring Kit:
    • 1x A5 Buffer
    • 1x Buffer Spring
    • 1x Locknut (Castle Nut)
    • 1x End Plate


When you want the best performance from your AR-15, you leave nothing to chance. You could use any buffer tube on the market, but if you want a multi-position receiver extension that will give you reliable performance you should make sure that Vltor A5 components are on your list of considerations. The Vltor A5 Receiver Extension is made through impact extrusion of 7075 T6 Aircraft grade aluminum.

Vltor A5 Buffer Tube

The Vltor A5 Buffer Tube is carefully finished and hard anodized for smooth sliding adjustment to any of the seven marked positions. Numerical markings are visible through the witness holes that are integrated into most stocks. This allows you to quickly adjust for the best fit and control in a variety of situations without wasting time on unnecessary guesswork.

Vltor A5 Kit

Wing Tactical offers the Vltor A5 Receiver Extension as a stand-alone part (Vltor A5 Buffer Tube only) or as a kit with the A5 Spring and Buffer Kit to give you an easy way to acquire your complete A5 Buffer System. Please note, that A5 buffer and spring system are designed to work together in Vltor A5 Buffer Tube and may not function properly with unrelated components.

The Vltor A5 spring and buffer kit comes with a standard 5.3-ounce buffer which can be swapped out for another weight of Vltor A5 buffer if your system requires a different buffer weight. The supplied receiver lock nut has three different notches for positive staking. Vltor A5 kit is designed to out-perform standard Mil-Spec buffer systems giving you a more reliable, smoother operating weapon system.

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