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Kak Industry
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.
| Manufacturer | KAK Industry |
| Product Type | AR-15 Buffer |
| System Compatibility | A5-length |
| Weight | 7.2 ounces |
| Buffer Class | H4 (Heavy) |
| Material | 7075 aluminum |
| Finish | Hard coat anodized, gold |
| Origin | Made in USA |
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.
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.
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.
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.
Kak Industry
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.
| Manufacturer | KAK Industry |
| Product Type | AR-15 Buffer |
| System Compatibility | A5-length |
| Weight | 7.2 ounces |
| Buffer Class | H4 (Heavy) |
| Material | 7075 aluminum |
| Finish | Hard coat anodized, gold |
| Origin | Made in USA |
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.
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.
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.
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.
