Description
MPN: 522-0704-109 / 522-0704-110 / 522-0704-111 / 522-0704-112
Features:
- A5-Length Enhanced Buffer: Purpose-built for VLTOR A5 / intermediate-length receiver extensions, offering smoother recoil impulse than standard carbine systems
- Recoil-Reducing K-SPEC Design: The two-piece reciprocating buffer body and internal captured spring system help absorb energy, reduce felt recoil, and soften the return stroke—keeping the rifle flatter and faster
- Bolt Bounce Suppression: Engineered to minimize bolt bounce, improving reliability during rapid fire or when running hotter ammo
- Includes Matching Flatwire Spring: Ships as a complete kit: Enhanced buffer, K-SPEC flatwire buffer spring, and install tool—everything needed for drop-in installation
- Smoother, More Consistent Cycling: Flatwire spring provides longer service life, more consistent compression, and tighter energy control compared to mil-spec round wire springs
- Made in the USA: Designed and manufactured by KAK Industry with mil-spec quality standards
Specifications:
- Material:
- Body: 6061-T6 Aluminum
- Weight: Tungsten or Steel
- Finish: Anodized
- Weight:
- H1: 4.7 oz
- H2: 5.6 oz
- H3: 6.5 oz
- H4: 7.3 oz.
- Length: 4.12"
Compatibility:
- AR-15 with A5-style buffer tube
Includes:
- 1x K-SPEC Enhanced A5 Buffer
- 1x Flatwire Buffer Spring
- 1x Buffer Installation Tool
Details:
If you’re running an A5-length receiver extension and want to smooth out the recoil cycle without making the rifle feel sluggish, the KAK Industry K-SPEC Enhanced A5 Buffer is built for that exact role. It’s tuned to slow bolt speed on over-gassed or suppressed rifles while keeping the action responsive and predictable, striking a balance that works well across a wide range of setups.
Controlled Internals, No Rattle or Slap
What separates the K-SPEC A5 buffer from standard A5 options is its internal design. Instead of loose weights clacking around inside the body, the K-SPEC A5 buffer uses extended-length weights guided by polyurethane spacers. This keeps the mass moving in a controlled, linear path throughout the stroke. The result is less internal noise, reduced buffer slap at the rear of the extension, and noticeably less spring resonance. On the shoulder, the recoil impulse feels smoother and more deliberate, with a calmer return into battery.
Built for High-Use Rifles
The buffer body is machined from 6061-T6 aluminum and finished with a hard anodize for durability. Inside, nickel-plated steel weights resist corrosion and fouling, making this buffer well suited for rifles that see high round counts or frequent suppressor use. It pairs naturally with 5.56 and 7.62 systems that benefit from better control over carrier velocity without compromising reliability.
True Drop-In for A5 Systems
If your rifle already uses an A5-length receiver extension, installation is straightforward. Depress the retainer, swap buffers, and you’re done—no tuning process, no spring changes, and no guesswork. The improvement shows up immediately as quieter operation, fewer harsh impacts in the tube, and a more settled recoil cycle.
Refinement You Can Feel
For shooters who appreciate the advantages of the A5 system but want an added layer of smoothness and control, the KAK K-SPEC Enhanced A5 Buffer delivers. It keeps the rifle stable and predictable during rapid fire or suppressed use, all while preserving the responsive feel that makes the A5 setup so effective.
