The J P Enterprises Tuned and Polished Buffer Spring (J P Enterprises part no. JPS-OSC.308) is a carbine-length spring built for .308-pattern AR-10 rifles, hand-tuned and polished to reduce friction and buzz compared to a stock buffer spring. J P Enterprises applies the same precise coil spacing and tension control to this carbine-length spring as it does across its rifle-length lineup, giving smoother cycling in a shorter buffer system. Carbine-length .308 builds already run under higher pressure and faster cycling than rifle-length guns, so a properly tuned spring matters even more for a controllable, soft-shooting rifle. It is a genuine performance upgrade for carbine-length .308 AR-10 owners chasing smoother function.

Key Specifications

• Built for .308-pattern AR-10 rifles.
• Sized for a carbine-length buffer system.
• Hand-tuned and polished for reduced friction.
• Delivers smoother cycling than a stock buffer spring.

Frequently Asked Questions

What platform does this spring fit? .308-pattern AR-10 rifles with a carbine-length buffer system.

Why does spring tuning matter more on a carbine-length .308? These builds already cycle faster and under higher pressure, so a properly tuned spring helps keep the rifle controllable.

Buy the J P Enterprises .308 Carbine-Length Buffer Spring

Smooth out your carbine-length .308 AR-10 with a hand-tuned, polished buffer spring. See more from J P Enterprises or shop our full AR buffer system selection. Order it from our Lubbock, Texas gun shop for fast, insured shipping.