The Kynshot RB5100 Recoil Buffer Anodized Aluminum Shotgun tube is a hydraulic, adjustable recoil buffer engineered to replace a standard stock tube on shotguns equipped with AR-15 style, Mil-Spec threaded adapters. Built from anodized aluminum with a black finish, it compresses up to 3/4 inch under recoil to dramatically cut felt recoil and muzzle rise while remaining compatible with any Mil-Spec collapsible stock.

This RB5100 model is ideal for shooters who want smoother control and faster follow-up shots from popular pump and semi-auto shotguns configured for Mil-Spec receiver adapters. With three clearly marked damping profiles—low, medium, and heavy—it can be tuned to everything from light target loads to heavy magnum shells, making it well suited for range use, training, and hunting where comfort and control matter. The design reflects Kynshot’s focus on practical innovation in recoil management and durable, high-performance components.

Key Features:

• Manufacturer: Kynshot
• Model: RB5100
• Type: Hydraulic Adjustable Shotgun Recoil Buffer
• Material: Anodized Aluminum
• Color: Black
• Compression Travel: 3/4 Inch
• Damping Settings: Three (Low, Medium, Heavy)
• Recoil Reduction: Up To 90 Percent
• Stock Compatibility: Mil-Spec Collapsible Stocks
• Mounting: Mil-Spec Style Threads
• Weight: 13.5 Oz