Kaw Valley Precision Heavy H3 Stainless Steel Buffer Features The Kaw Valley Precision Heavy H3 Stainless Steel Buffer uses two internal brass weights combined with a stainless steel buffer body to bring the total weight up to 5.4 ounces placing it solidly in the heavier H3 weight class. That added mass slows the rearward travel of the bolt carrier group which negates bolt bounce and lets the bolt lock up more consistently before the next round feeds. A more controlled cycle increases weapon reliability across a range of ammunition pressures and buffer spring combinations. The stainless steel construction also resists the corrosion and wear that a buffer experiences from repeated contact inside the receiver extension. Reducing bolt bounce and smoothing the recoil impulse also reduces wear on critical internal parts such as the bolt lugs extractor and buffer spring extending the service life of the rifle s internals. Shooters who feel a sharp snappy recoil impulse with a lighter standard buffer often find that stepping up to an H3 weight noticeably softens felt recoil during rapid strings of fire. Because the buffer is a drop-in replacement for a standard AR buffer tube installation requires no modification to the lower receiver. For anyone tuning an AR-pattern rifle for smoother cycling and reduced felt recoil the Kaw Valley Precision Heavy H3 Stainless Steel Buffer is a straightforward upgrade for sale at GrabAGun. Kaw Valley Precision Heavy H3 Stainless Steel Buffer Specifications Manufacturer: Kaw Valley Precision Model: Heavy H3 Stainless Steel Buffer Type: Buffer Weight: 5.4 oz Material: Stainless Steel Features: 2 Brass Weights Reduces Bolt Bounce Available At: GrabAGun