This Sprinco Usa spring kit (brand part no. 25009) bundles a standard-power AR-15 buffer spring with a heavy-duty 5-coil bolt extractor spring, giving builders a two-in-one upgrade over a worn factory buffer spring and a weak factory 3-coil extractor spring. The extra-coil extractor spring is a common fix for extraction reliability issues. This rifle part kit covers two common wear points in one purchase.

Key Specifications

• Includes a standard buffer spring.
• Includes a heavy-duty 5-coil bolt extractor spring.
• Sold as a bundled spring kit, not individual loose springs.

Frequently Asked Questions

Why a 5-coil extractor spring instead of the factory 3-coil? A 5-coil spring adds more tension to the extractor, which is a common upgrade to address extraction failures from a weak factory spring.

Does this replace my buffer tube? No, it only replaces the buffer spring inside your existing buffer tube, along with the bolt’s extractor spring.

Buy the Sprinco Spring Kit, Standard Buffer & Heavy-Duty 5-Coil Bolt Extractor Spring

Covering both a tired buffer spring and a weak extractor spring in one kit is an efficient way to service an AR-15. Order it from our Lubbock, TX gun shop for fast, insured shipping.