Details
Details
The Expo Arms H2 Heavy AR-15 carbine buffer with an FDE bumper adds mass to slow the bolt carrier, which helps reduce felt recoil and improve cycling in over-gassed systems. It is a drop-in carbine-length buffer for AR-15 and AR-10 platforms that use carbine receiver extensions.
Features:
- H2 heavy carbine buffer, carbine length
- FDE bumper
- Fits AR-15 and AR-10 platforms with Mil-Spec or commercial carbine-length receiver extensions
- Also fits 8" GI-spec AR-10/AR-308 receiver extensions
- Drop-in replacement for standard carbine buffers, no modifications required
- Precision machined to mil-spec dimensions
- Made in the U.S.A.
The heavier mass slows bolt carrier velocity, which reduces felt recoil and bolt bounce. It also increases dwell time, which improves extraction reliability in over-gassed or suppressed setups.
The H2 is a popular choice for mid-length and carbine gas system builds, suppressed setups, and shooters who want reduced recoil without sacrificing reliability. It is built from durable materials to withstand years of regular use.
Expo Arms offers mil-spec AR-15 components at competitive prices, made in the U.S.A. and backed by Expo's Limited Lifetime Warranty against defects in materials and workmanship.
California Prop 65 warning
WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.Ratings & Reviews
19 reviews
Helped Tame my Carbine Length AR15
by Grant -
This Expo Arms H2 buffer paired with a BLUE Springco spring helped tame the recoil on my 16" carbine AR15. It brought it from a 2 o'clock ejection closer to true 3 o'clock. Happy with the buffer, no problems with install or function.
Good spares
by Fred -
Good spares for troubleshooting your gas system or tuning.
Yes indeed
by Dan
Have 3 of these on 3 different builds, from 223 to 300blk and they work extremely well. Suppressed or not the buffer doesn’t spring with this weight. It’s run on my rifles shorter than 10.5in and am very happy with them
Perfect weight
by Jack -
I am always on a budget so I buy the least expensive parts usually. I order Expo parts because of that. For the price the quality is outstanding. I see no difference in this part compared to a big name part that costs 2-3 times what this costs. It weighs 4.6oz which is perfect for an H2. It is not marked but why care? I just got a marker and wrote H2 on it and saved a lot of money. Bottom line it functions perfect. It has smoothed out the action on my AR a great deal. I have no problem purchasing Expo arms parts and recommend them to anyone who is like me on a budget.
Worked great in 300 Blackout
by Anthony G
It came within a reasonable amount of time I put it in a 10 1/2 inch pistol build. I had originally put a fire pig flash can it was still around 3 o’clock extraction after putting this H2 buffer in it went right to 4 o’clock perfect very good quality without breaking the bank.
Great buffer
by Colby
I've got 3 of these buffers in 3 different rifles, all short barrel rifles in .223, 7.62x39, and 6.5 Grendel. In all 3 rifles, the H2 buffer helped reduce felt recoil and improve reliability, especially in the 8" 7.62. No, the face isn't marked (which is obvious if you actually look at the picture of what you're buying), but this can be easily remedied if desired. The weights do rattle around inside the buffer, but this is fixable too. Remove the bumper, take out the weights, and put a little grease in the bottom of the buffer (I use SuperLube with PTFE). Put the weights back in and put another dab on top of the weights, between them and the bumper. This will prevent the weights from rattling around, and does not add enough mass to make a difference. I've been doing this to buffers for decades without issue.
Recommended upgrade for Carbine length Gas AR's
by Oregon Shooter -
I recently got a Carbine length gas AR and it has a significant feeling of jarring when shooting, so I tried this H2 buffer, and the quality is excellent, works great, reduced felt "jolt" in the recoil, functions just fine, brass ejects about 2:30 to 3:30 now depending on the load.
Great H2 weight buffer, stamped mine H2...
by Ralph -
The color coding of the bumper doesn't work for me so I took a small number stamp set I have & lightly stamped a number "2" into the face of the buffer to more easily ID it as an H2. Looks to be comparable to other manufacture's offerings costing twice as much. Wish I had picked up a few more while they were on sale.
EXPO ARMS H2 BUFFER
by Derek -
It works as intended
It's an H2 Buffer
by JD -
Run this in a 5.56 middy AR and it smoothes out recoil (as if there was much). No issues with low power Wolf steel ammo either. Front face is not stamped with an "H2". I don't switch out buffers, therefore the color code system used by Expo Arms is a non-issue for me.