There are many ways to smooth the operation of a AR-15
Carbine. One of the most cost effective and quickest upgrades available, is the
installation of a KVP™ Heavy Tungsten Buffer. There are many added benefits
once you install a KVP™ tungsten buffer. Benefits include: increased
reliability, reduced wear and tear of critical internal parts, reduction in
felt recoil, reduction in bolt bounce, as well as eliminating the annoying
"rattle" of standard carbine buffers. Manufactured to meet the
highest quality, KVP™ Heavy Tungsten Buffers are within a tolerance of +/- .005
oz, resulting in a more consistent, higher quality buffer.
Pistol caliber carbines such as 9mm, .40 S&W, .45 ACP, and 10mm are a blast to shoot but can be tough on AR-15's internal components. Without a properly tuned blowback system, you run the risk of being overly destructive on internal lower parts. Running a blowback AR15 with a suppressor can further increase the risk for damage. In addition to a properly weighted buffer, the KVP Extra Power recoil spring is a must! The KVP XP 17-4 SS spring offers increase pre-load over standard springs. The additional preload helps increase the Blowback systems dwell time.