Description
Battle Arms AR15 H2 Buffer
The AR15 H2 Buffer is a heavier-weight carbine buffer designed to help improve cycling, reduce felt recoil, and smooth out operation—especially in carbines that run over-gassed, suppressed setups, or short-barreled configurations. By slowing the bolt carrier’s rearward movement, an H2 buffer can enhance reliability and reduce bolt speed for more consistent performance.Using an H2 heavy buffer (approximately 4.65 oz) in an AR-15 can offer several benefits, primarily by
slowing down the bolt carrier group's (BCG) travel, which helps tune an "over-gassed" system. This leads to a smoother,more controlled shooting experience and reduced wear on components.
Key Benefits
- Reduced Felt Recoil: The increased mass helps absorb more kinetic energy and spreads out the recoil impulse over a longer period, resulting in a softer "feel" and less muzzle rise. This allows for faster, more accurate follow-up shots.
- Improved Reliability: Slower, more controlled cycling of the action provides more time for the magazine to present the next round properly, leading to more reliable feeding, extraction, and ejection, especially with a wide range of ammo types.
- Reduced Wear and Tear: By slowing the BCG's rearward travel and minimizing the force with which it impacts the buffer tube, an H2 buffer lessens the stress on internal components like the bolt and carrier, potentially increasing the lifespan of the rifle.
Optimized for Specific Setups:
- It is a common upgrade for rifles or carbines that are considered "over-gassed" by the manufacturer (a common design choice to ensure function across all ammo types).
- It's often recommended for mid-length gas systems and especially effective in short-barreled rifles (SBRs) or AR pistols with carbine-length gas systems, which naturally cycle more violently.
- It can improve performance in suppressed firearms by better managing the increased gas pressure that suppressors introduce into the system.
- Minimized Bolt Bounce: The internal weights in the H2 buffer help to provide a follow-up impact as the bolt locks forward, which helps prevent the BCG from bouncing slightly out of battery.
In short, the H2 buffer helps tune the rifle's gas system to run more efficiently and smoothly, especially in configurations that tend to be over-gassed. However, it is important to ensure the rifle still locks back on an empty magazine, as an overly heavy buffer can cause reliability issues like "short stroking" (failure to cycle fully).
These technical guides explain how an H2 heavy buffer can improve an AR-15’s reliability, reduce recoil, and minimize wear by managing the bolt carrier group’s cycling speed.
Compatibility
- Fits mil-spec AR15 carbine receiver extensions (carbine buffer tubes)
- Use with a standard carbine buffer spring unless your setup requires a specialized spring
Notes
- If you’re experiencing short-stroking or weak ejection, an H2 buffer may be too heavy depending on your gas system and ammo.
- Ideal buffer weight depends on barrel length, gas system length, suppressor use, ammo, and overall tuning.
Specifications are subject to change without notice.
Additional Details
- SKU:
- AR15-BUFFER-H2
- UPC:
- 810033781131
- Condition:
- New
- Width:
- 4.00 (in)
- Height:
- 4.00 (in)
- Depth:
- 4.00 (in)
