Silverback TAC-41 Variable Mass Piston

The Silverback TAC-41 Variable Mass Piston is a precision upgrade designed for the TAC-41 platform, giving you exact control over muzzle energy and cycling feel. This modular kit lets you tailor performance with interchangeable weights and CNC-machined components for repeatable results across sessions.

• Adjustable mass range: Dial in muzzle energy by changing piston mass from 39 to 135 grams across 15 configurations.
• Premium CNC machining: Piston head and body crafted from CNC AL 6061 T6; piston end in CNC steel for solid, consistent construction.
• Weighted versatility: Includes CNC aluminium flyweights (4 pieces) and CNC steel flyweights (4 pieces) for precise mass tuning.
• NBR piston cup design: 70° NBR piston cup delivers reliable seal and stable pressure during operation.
• Complete lubrication: PTFE grease included to minimize friction and promote smooth, consistent cycling.
• Ready-to-use kit: Tools included to facilitate setup and fine-tuning right out of the box.
• Targeted compatibility: Specifically engineered for the TAC-41 platform to maximize integration and performance.

The TAC-41 Variable Mass Piston empowers you to optimize energy, recoil, and reliability for your most demanding sessions. Whether you’re dialing in field performance, matching different ammo or play conditions, this kit provides concrete, repeatable adjustments without swapping whole components. The combination of CNC precision parts, a versatile weight system, and a durable NBR cup helps you unlock consistent power delivery and smoother operation on every shot.