The Sprinco USA Spring Kit (Sprinco part no. 25406) bundles Sprinco’s higher-tension XP buffer spring with an enhanced 4-coil bolt extractor spring. Compared with a standard-rate kit, the XP buffer spring returns the bolt carrier group with more force, while the enhanced extractor spring adds further tension behind the extractor claw for a firmer grip on the case rim.

Key Specifications

• XP high-tension buffer spring returns the bolt carrier group with more force than a standard-rate spring.
• enhanced 4-coil extractor spring adds tension behind the extractor claw beyond a standard-rate spring.
• sold as a two-part kit addressing both springs in a single purchase.

Frequently Asked Questions

How is this different from Sprinco’s standard kit? Both the buffer spring and extractor spring in this kit are the higher-tension XP/enhanced versions rather than standard rate.

What does this kit include? An XP buffer spring plus an enhanced 4-coil bolt extractor spring.

Buy the Sprinco XP Buffer & Enhanced Extractor Kit

Step up to higher-tension buffer and extractor springs in one kit. Browse more of our rifle parts selection and order from our Lubbock, Texas gun shop.