Description
The Alternative Spring Pack Kits are a pack of 5 different spring weights for the JP Silent Captured Spring that allow custom tuning of the device to a given rifle. While the default spring offers the best performance for the widest range of configurations, a simple disassembly and reassembly of the JPSCS-15 with a slightly different spring rate can yield truly optimized performance, particularly for rifles without an adjustable gas block.
![[56200-0503] Frame Seat (Rubber Feet Front) for WEN 56200i](https://www.greatdiyhardware.com/wp-content/uploads/2026/07/56200-0503-frame-seat-rubber-feet-front-wen-56200i.webp)
