The JP Enterprises 308 AR Alternate 3 Spring Pack For JPSCS-10 is designed specifically for shooters running the JP Silent Captured Spring in their large-frame .308 AR platforms. This three-spring kit provides alternate spring rates so you can fine-tune the cycling of your JPSCS-10 or JPSCS2-10 system to match your rifle’s gas setup, bolt carrier mass, and barrel length for smoother operation and more controlled recoil.

This spring pack is ideal for .308 AR, AR-10, and LR-308 builds that need tailored recoil behavior, especially rifles without an adjustable gas block where spring rate becomes a key tuning tool. Whether you are focused on consistent performance at the range, competition use, or general training, the ability to swap between light, medium, and heavy springs helps you dial in reliable function and a more comfortable shooting impulse. Backed by JP Enterprises’ reputation for thoughtful engineering and precision manufacturing, this kit complements their Silent Captured Spring system with practical, user-friendly customization.

Key Features:

• Manufacturer: JP Enterprises
• Model: 308 AR Alternate 3 Spring Pack For JPSCS-10
• Condition: New
• Platform: .308 AR / AR-10 / LR-308 Large Frame
• Fits: JP Silent Captured Spring JPSCS-10 / JPSCS2-10
• Springs Included: 3 Alternate Spring Weights