XTS Heavy Buffer Features The XTS Heavy Buffer is built from precision machined steel giving it the added mass needed to slow bolt carrier group movement during the cycling process. That added weight in the 4.5 to 4.7 ounce range helps reduce felt recoil at the shoulder and minimizes bolt bounce the brief rearward rebound that can affect accuracy and reliability on fast-cycling rifles. Smoother cycling also reduces wear on internal components over time since the bolt carrier group travels through its cycle with less abrupt impact against the buffer tube s rear. This makes the Heavy Buffer a simple effective upgrade for shooters looking to tune their rifle s recoil impulse without replacing the entire buffer spring system. Designed to fit mil-spec AR-15 buffer tubes the XTS Heavy Buffer is a straightforward drop-in replacement that does not require any additional modification to install. Shooters running a carbine-length gas system which tends to cycle more aggressively than mid-length or rifle-length systems often see the most noticeable improvement in felt recoil and reliability from switching to a heavier buffer weight. This upgrade is a popular low-cost way to smooth out an AR-15 s operating cycle for more comfortable shooting during extended range sessions. The XTS Heavy Buffer is available for sale at GrabAGun for shooters who want improved cycling and reduced felt recoil in their mil-spec AR-15 build. XTS Heavy Buffer Specifications Manufacturer: XTS Model: Heavy Buffer Type: Buffer Compatible Hosts: Mil-Spec AR-15 Buffer Tubes Material: Steel Color: Black Weight: 4.5-4.7 oz Available At: GrabAGun