Angstadt Arms 9/40/45 ACP 10oz Buffer Kit – PCC AR-Platform

The Angstadt Arms 10oz Buffer Kit is engineered specifically for pistol-caliber carbines chambered in 9mm, .40 S&W, and .45 ACP built on AR-platform lowers. This heavier buffer weight helps regulate bolt carrier velocity in blowback-operated PCCs, reducing felt recoil and improving cycling reliability with a wider range of ammunition loads. Proper buffer weight is critical in direct blowback systems where there's no gas system to moderate timing.

The kit includes a machined steel buffer housing with tungsten weights totaling 10 ounces, plus a heavy-duty buffer spring designed to work in concert with the increased mass. Installation is straightforward—simply remove your existing buffer and spring from the receiver extension, then install this kit. Compatible with standard carbine receiver extensions on AR-pattern pistol-caliber builds. Not for use in rifle-caliber gas-operated systems.

• Type: Pistol Caliber Carbine Buffer Kit
• Compatible Firearms: AR-pattern PCCs in 9mm, .40 S&W, .45 ACP
• Buffer Weight: 10 ounces
• Material: Steel housing with tungsten weights
• Includes: Buffer assembly and heavy-duty spring
• Installation: Drop-in replacement for standard carbine buffer systems