The KAK Industry AR-15 A5-length H2 buffer is a heavy-duty carrier for shooters building or tuning an AR platform rifle. This 5.5 oz buffer is engineered to work specifically with A5-length buffer tubes and rifle-length buffer springs, making it the right choice if you're running an A5 system or planning to convert to one. KAK Industry manufactures these in the USA from 7075 aluminum and hard coat anodizes each one, creating a durable component built to handle years of range time and hunting without compromise.

The H2 weight sits in the middle of KAK's buffer lineup, offering a balance suited to a variety of AR builds and ammunition types. Heavier buffers generally help reduce bolt carrier velocity and can smooth out recoil impulse, which matters whether you're chasing precision on the range, managing recoil in a lightweight build, or just want a more controllable shooting experience. Since buffer weight interacts with your spring, bolt carrier, and ammunition, choosing the right mass is part of fine-tuning your rifle's function.

If you're upgrading an existing A5 system or starting fresh with A5 components, verify that your buffer tube and spring are A5-spec before ordering—this buffer will not work with carbine-length tubes or springs. Install is straightforward: drop it into your tube, thread on your action spring, and you're done. KAK's hard coat anodize finish resists wear and corrosion, so your buffer will look and function the same after hundreds of rounds.

The KAK Industry AR-15 A5-length H2 buffer is a heavy-duty carrier for shooters building or tuning an AR platform rifle. This 5.5 oz buffer is engineered to work specifically with A5-length buffer tubes and rifle-length buffer springs, making it the right choice if you're running an A5 system or planning to convert to one. KAK Industry manufactures these in the USA from 7075 aluminum and hard coat anodizes each one, creating a durable component built to handle years of range time and hunting without compromise.

The H2 weight sits in the middle of KAK's buffer lineup, offering a balance suited to a variety of AR builds and ammunition types. Heavier buffers generally help reduce bolt carrier velocity and can smooth out recoil impulse, which matters whether you're chasing precision on the range, managing recoil in a lightweight build, or just want a more controllable shooting experience. Since buffer weight interacts with your spring, bolt carrier, and ammunition, choosing the right mass is part of fine-tuning your rifle's function.

If you're upgrading an existing A5 system or starting fresh with A5 components, verify that your buffer tube and spring are A5-spec before ordering—this buffer will not work with carbine-length tubes or springs. Install is straightforward: drop it into your tube, thread on your action spring, and you're done. KAK's hard coat anodize finish resists wear and corrosion, so your buffer will look and function the same after hundreds of rounds.