SRS Variable Mass Piston

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SRS Variable Mass PistonFine-tune your Silverback SRS power output with the Variable Mass Piston. By adding or removing the included weights, you can adjust the effective piston ma ss to dial in your FPS precisely — whether you're tuning down to meet a field limit or optimizing for maximum performance within your site's rules. Adjustable mass via removable weights for precise FPS tuning Allows fine-tuning without changing springs OEM Silverback SRS upgrade piston Compatible with: Silverback SRS A1, SRS A2 Show more