Kak Industry Llc. Ar-15 A5-Length H4 Buffer 7.2Oz Gold

The KAK Industry AR-15 A5-length H4 buffer is a purpose-built heavy buffer for shooters running A5-system ARs who need to tame recoil and cycle reliability. At 7.2 ounces, this gold-anodized buffer sits at the heavier end of the H-series spectrum—ideal if you're shooting suppressed, running a heavy bolt carrier, or just want a softer pulse through the platform. Built from 7075 aluminum and hard coat anodized, it's made to last a lifetime in the field or on the range.

A5-length buffers are purpose-built for rifles that run A5-compatible tubes and full-length rifle buffer springs, giving you a different stroke than standard carbine systems. If you're upgrading an existing A5 build or fine-tuning your rifle's cycling behavior, this is the heavy-hitter option. The weight and material quality mean you get consistent performance across different ammunition types and configurations.

KAK's reputation is built on American-made AR parts that don't break the bank. This buffer is no exception—straightforward engineering with no gimmicks, just mass and durability. Whether you're a precision-focused range shooter, a suppressed-rifle enthusiast, or someone building an A5-system rifle from the ground up, this is a no-nonsense upgrade that works.

Key Features

• 7.2-ounce H4-weight buffer for recoil reduction and softer cycling
• 7075 aluminum construction with hard coat anodizing for durability
• A5-length design—compatible only with A5-length buffer tubes and rifle-length AR-15 buffer springs
• 100% American made
• Gold anodized finish

Specifications

Frequently Asked Questions

What AR buffer tube does this fit?

This is an A5-length buffer, so it's compatible only with A5-length buffer tubes and rifle-length AR-15 buffer springs. It will not work in a standard carbine buffer tube system. Make sure your build uses A5 components before ordering.

Why would I choose the 7.2-ounce H4 over a lighter buffer?

A heavier buffer slows the cycling of your bolt carrier group, which reduces felt recoil and can improve control. It's especially useful if you're running a suppressor, shooting heavy ammunition, or operating a rifle-length gas system where you want a smoother, softer cycle.

Is this buffer suitable for suppressed shooting?

Yes. Suppressed rifles often run hotter and cycle faster, and a heavy buffer like this H4 can help manage that extra energy. Pair it with a quality A5 tube and spring for optimal results.

What's the warranty on KAK Industry buffers?

KAK Industry rates this buffer for a lifetime of dependable use, but warranty terms and coverage should be verified directly with the manufacturer or your retailer.