Description
MPN: 522-1702-111 / 522-1702-112 / 522-1702-113
Features:
- Purpose-Built for PCCs: Designed specifically for 9mm AR and other blowback-operated PCC platforms, where recoil forces are harsher than standard AR-15 systems
- Heavy Mass: Added weight slows bolt velocity to reduce felt recoil, minimize dot bounce, and improve controllability during rapid fire
- K-SPEC Enhanced Buffer Design: Features a two-piece reciprocating buffer body with an internal captured spring system, helping absorb energy and soften the recoil impulse compared to solid buffers
- Reduces Bolt Bounce & Component Wear: Controlled rearward and forward motion helps limit bolt bounce, improving reliability and extending the life of internal components
- Flatwire Spring Included: Ships as a complete kit with a matched flatwire buffer spring for smoother cycling, longer service life, and more consistent performance
- Drop-In Installation: Fits standard carbine-length receiver extensions—no permanent modifications or special tools required
- Durable, Hard-Use Construction: Phosphate buffer body with reinforced bumper built to handle the abuse of blowback systems
- Made in the USA: Manufactured by KAK Industry with a focus on reliability, consistency, and real-world performance
Specifications:
- Material:
- Body: Steel
- Weight: Tungsten or Steel
- Finish: Phosphate
- Weight:
- Orange Bumper: 6.9 oz.
- Red Bumper: 7.8 oz.
- Yellow Bumper: 8.6 oz.
- Length: 4"
Compatibility:
-
AR-15 PCC platforms with a carbine-length buffer tube and a one-piece blowback BCG
Includes:
- 1x K-SPEC AR-15 PCC Carbine Buffer
- 1x Flatwire Buffer Spring
- 1x Buffer Installation Tool
Details:
Straight-blowback AR PCCs are tough on recoil systems, and that’s exactly the environment the KAK K-SPEC Enhanced PCC Buffer is designed for. Blowback guns run fast and hit hard by nature, and this buffer is built to slow the action and absorb impact in a controlled way—helping the carbine feel smoother and more manageable without relying on temporary fixes or excessive tuning.
Guided Internals for a Calmer Recoil Cycle
What sets the K-SPEC PCC buffer apart is its internal layout. Instead of loose, free-floating weights rattling inside the tube, KAK uses extended-length internal weights separated by polyurethane spacers. This guided movement keeps the mass aligned throughout the entire stroke. The result is less internal noise, reduced bolt bounce, and a smoother, more predictable return to battery. On the range, the recoil impulse feels more linear and less abrupt, which is especially noticeable during fast strings or competition-style shooting.
Tuning Flexibility for Different PCC Setups
Blowback PCCs vary widely in barrel length, ammunition, and suppressor use, so KAK offers the K-SPEC PCC buffer in multiple configurations. That flexibility lets you tune the system to your specific setup instead of forcing a one-size-fits-all solution. It makes it easier to balance reliability and control without overdoing it and turning the gun sluggish.
Simple Drop-In Upgrade with Real Results
Installation is as straightforward as any AR buffer swap. Drop it in, close the receiver, and get back to shooting. The payoff is immediate: quieter cycling, reduced rearward impact, and a PCC that feels more composed under recoil. Over time, that smoother operation can also help reduce stress on internal components.
Purpose-Built for Blowback Reliability
If you want your straight-blowback AR PCC to run smoother, sound quieter, and feel more controlled—without complicated tuning or added parts—the KAK K-SPEC Enhanced PCC Buffer is a smart, purpose-built upgrade that delivers exactly where blowback systems need it most.
