VLTOR A5 H3 Buffer

(1 customer review)

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Price: $50.95

The VLTOR A5 buffer system is one of the most tried-and-true buffer systems available in the AR-15 world today. The A5 buffer was specifically designed at the request of the Marine Corps to bring an adjustable stock to their 20” M16 rifles. VLTOR brought them a completely new buffer system that used a rifle-length spring in an adjustable receiver extension tube. This translates to a smoother, slower bolt movement that reduces felt recoil and allows shooters to keep on target.


  • VLTOR patented design
  • Body of the buffer is 7075 T6 aluminum
  • Mil-Spec Type III clear hard coat anodized
  • Heavy A5 Buffer Weight of 6.08oz

A5 buffers can only be used with the A5 receiver extension and come in 5 different weights, depending on the needs of the user. Most 16” AR-15s will use the lower weight H1 and H2 options. Short-barreled rifles or suppressed rifles, which experience a lot of backpressure, use H3 and H4 heavy buffers to counteract the violent action of the AR-15’s bolt.

This is the second heaviest weight buffer available for the Vltor A5 buffer system. If you use the A5 system, and your rifle suffers from signs of severe over gassing, this buffer will increase the weight of the recoiling mass to balance out the draw. It also reduces the cyclic fire rate by making the bolt move slower through the buffer tube. This is also a great buffer for those with adjustable gas blocks, as it can be tuned for the comfiest possible shooting experience.

Always check with your rifle’s manufacturer specifications to determine what weight is appropriate in your firearm. In special cases, additional research may be done online to determine compatibility.

This buffer does not fit standard carbine extensions. This buffer is only compatible with rifles and pistols utilizing the VLTOR A5 Buffer System and receiver extension.

Additional information

Weight .2 lbs
Dimensions 4 × 4 in

1 review for VLTOR A5 H3 BUFFER – 6.08 OZ

  1. Christopher Rausch (verified owner)

    Used to tune and tame a 12.5” suppressed AR. Works perfectly. The A5 system is the way to go.

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