The Kynshot RB5015HD Heavy Damped Recoil Buffer Stainless Steel is a purpose-built hydraulic buffer for AR-9 pistol caliber carbines that demand smoother cycling and reduced recoil. Developed in cooperation with Blitzkrieg Components, this heavy-damped unit uses a 17-4 stainless steel body and internal hydraulic shock absorption to slow the bolt at the end of its travel and control its return, helping protect your firearm and optics while keeping the gun running reliably with 9mm, .45 ACP, and 10mm loads.

Optimized for PCC builds using a Mil-Spec carbine buffer tube and barrel lengths of 8 inches or longer, the RB5015HD is ideal for competition, training, and extended range sessions where softer recoil and faster sight recovery matter. Its increased hydraulic resistance and stronger return spring make it well suited to high-pressure or suppressed setups, offering a quieter, smoother action and less sight movement shot to shot. Backed by KynSHOT’s focus on precision hydraulic damping, this buffer reflects careful engineering and durable craftsmanship.

Key Features:

• Manufacturer: KynSHOT
• Model: RB5015HD Heavy Damped Recoil Buffer
• Caliber: 9mm, .45 ACP, 10mm
• Material: 17-4 Stainless Steel
• Weight: 6.0 oz
• Length (Compressed): 3.90 inches
• Operating System: Hydraulic, optimized for blowback PCC
• Unique Features: Heavy-damped hydraulic design, reduced recoil and bolt bounce, drop-in fit for Mil-Spec carbine buffer tubes