Product Description The Angstadt Arms Hydraulic Buffer Kit is designed to smooth out the recoil impulse of straight blowback pistol-caliber carbine (PCC) builds. Featuring a heavy damping profile, it is well-suited for suppressed applications or unsuppressed barrels longer than 8 inches, helping improve shooting comfort and controllability. This kit includes a hydraulic buffer and spring, with a durable stainless-steel buffer body and a black bumper for consistent performance. Product Highlights Hydraulic buffer system helps smooth recoil impulse in straight blowback PCC platforms Heavy damping profile optimized for suppressed setups or longer unsuppressed barrels (8"+) 6 oz buffer weight helps tune cycling and reduce felt recoil 4.35" overall buffer length compresses to 3.90" for compact, spacer-free fitment Stainless-steel buffer body with a black bumper for durability and a clean, finished look Specs Brand: Angstadt Arms Product Type: Hydraulic buffer kit (buffer with spring) Damping Profile: Heavy damping Compatible Calibers: 9mm / .40 S&W / .45 ACP Application: Straight blowback PCC / AR-style builds Buffer Weight: 6 oz Buffer Length: 4.35 in Compressed Length: 3.90 in Bumper Color: Black Material/Finish: Stainless steel (buffer body) Manufacturer Part Number: AA09HBKHDP UPC: 850053228353 Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&&';;s manufacturer.