Sprinco USA Spring KIT-Buffer Enhanced 4-Coil Bolt Extractor Spring
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Spro USA
Overview
The Sprinco USA Spring Kit features a Buffer Enhanced 4-Coil Bolt Extractor Spring designed specifically for the AR-15 platform. This enhanced power spring provides increased tension, ensuring reliable extraction of spent cartridges during operation. Builders often incorporate this spring in setups that prioritize performance and reliability, particularly in competitive shooting or tactical applications.
Specifications
September 2026 on GunPartPicker
Spro USA Sprinco USA Spring KIT-Buffer Enhanced 4-Coil Bolt Extractor Spring ranked #33 of the 57 buffer springs builders added on GunPartPicker in September 2026. Builders on GunPartPicker first added it to a build in June 2026.
Today none of the 2 retailers we track has it in stock right now. Listed prices start at $21.99 at Brownells for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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