Expo Arms H3 AR-15 Carbine Buffer with OD Green Bumper

Manufactured by Expo Arms
4 Reviews


In Stock

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In Stock


The Expo Arms H3 Carbine Buffer is an easy and inexpensive upgrade for your AR-15. Weighing in at a hefty 5.2 oz, the H3 is ideal for exceptionally over gassed rifles, suppressed shooting, or AR-308's using GI-length 8" receiver extensions. These buffers feature a machined aluminum body with a durable black hardcoat anodized finish and flat dark earth rubber bumper to dampen recoil.

This 3.25" buffer is compatible with AR-15 MIL-SPEC and Commercial spec receiver extensions or 8" GI-spec AR-10/AR-308 receiver extensions. Proudly made in the U.S.A.


BrandExpo Arms
TypeBuffer - H3 Heavy Carbine
Weight5.2 Oz

Ratings & Reviews

4 reviews

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The right buffer

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This what I needed to fix and jamming issue. I'm 100% satisfied with the buffer and with The company

Out weighs the compotition

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I purchased both Expo Arms H3 and different T3, the Expo Arms actually weighed more than the other T3 even though it was supposed to weigh less.H3 5.58 oz.,T3 5.38,cheaper Expo Arms better deal.

Does the job

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Good and basic for the price. Been needing it to tame a overgassed upper with a fixed A2 fsb. It solved the malfunctions but the upper is still overgassed, however I’m happy that the AR no longer jams thanks to this H3 buffer.

really like this line of buffers

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Decided to build a 458 Socom with PA barrel, BCG, & Upper... Initial test fire showed some opportunities.... the first thing I noticed was the need for a different buffer, I chose this H3 and it worked miracles.... definitely will order again.