The J P Enterprises .308 AR Silent Captured Spring Gen 2 is a buffer system from J P Enterprises (brand part no. JPSCS2-10K) built for the .308 AR (large-frame, SR-25/DPMS-pattern) platform. It combines the buffer and action spring into one sealed, captured assembly, which removes the rattle and impact noise a standard buffer makes against the receiver extension and gives a noticeably smoother cycle under the heavier bolt thrust of .308 Winchester. The kit includes an alternate spring pack for retuning spring rate to a specific load.

Key Specifications

• It captures the buffer and action spring into one sealed assembly, eliminating rattle against the receiver extension.
• It is built for the .308 AR (large-frame) platform, matching SR-25/DPMS-pattern receivers.
• It ships with an alternate spring pack for retuning spring rate to a specific .308 Winchester load.
• It is a Gen 2 design, J P Enterprises’ current-generation Silent Captured Spring system.

Frequently Asked Questions

Does this fit an AR-15 receiver? No, this JPSCS2-10 unit is sized for the .308 AR (large-frame) platform; J P Enterprises’ JPSCS2-15 line covers the AR-15/M16.

Why capture the spring instead of using a standard buffer tube? A captured spring assembly removes the buffer’s rattle and impact noise against the receiver extension and smooths out the recoil impulse under .308 Winchester bolt thrust.

Buy the J P Enterprises .308 AR Silent Captured Spring Gen 2 with Alt Spring Pack

Order the J P Enterprises .308 AR Silent Captured Spring Gen 2 with Alt Spring Pack through our rifle parts selection at Schaefer Defense and we will ship it fast, fully insured, from our Lubbock, TX gun shop.