Kak Industry Llc. Ar-15 A5-Length H3 Buffer 6.34Oz Black

The KAK Industry AR-15 A5-Length H3 Buffer is a heavy-duty buffer built for shooters running A5-length buffer systems on their rifles. If you're building or upgrading an AR-15 with an A5 setup—whether for precision work, hunting, or competitive shooting—this buffer's weight and design influence your rifle's cycling and recoil impulse. At 6.34 oz, the H3 designation indicates it's a heavier option in the A5 lineup, which affects how your rifle operates with different ammunition and spring combinations.

KAK Industry manufactures this buffer from 7075 aluminum, a material chosen for strength and durability in demanding applications. The hard coat anodize finish protects against wear and corrosion over thousands of rounds, so you're not replacing it regularly. American-made construction means quality control and support from a U.S. manufacturer familiar with the AR platform and its users' needs.

A critical detail: this buffer is only compatible with A5-length buffer tubes and rifle-length AR-15 buffer springs. Before ordering, verify your build uses an A5 tube—confusing it with carbine-length or rifle-length carbine systems is a common and costly mistake. Once you've confirmed compatibility, the H3's weight allows you to fine-tune your rifle's recoil profile and cycling speed depending on your load, barrel length, and gas system.

Key Features

• A5-length design for rifles using A5 buffer tubes
• H3 weight (6.34 oz) for heavier recoil impulse control
• 7075 aluminum construction rated for long service life
• Hard coat anodized finish resists corrosion and wear
• American-made quality and support

Specifications

Frequently Asked Questions

Will this A5 buffer fit my AR-15?

Only if your rifle uses an A5-length buffer tube and rifle-length AR-15 buffer springs. Do not use this buffer with carbine-length tubes or standard carbine buffer springs. Check your current setup before purchasing.

What does the H3 weight mean?

H3 indicates a heavier buffer in the A5 lineup. At 6.34 oz, it increases the recoil impulse your rifle experiences, which can slow cycling and reduce felt recoil depending on your ammunition, barrel, and gas system configuration.

How durable is the hard coat anodize?

Hard coat anodizing is a mil-spec finish designed to protect 7075 aluminum from corrosion and wear over extended use. It's tougher than standard anodizing and suited to the demands of field and range shooting.