Sprinco USA Spring KIT-Std Buffer & HD 5-Coil Bolt Extractor Spring
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Spro USA
Overview
The Sprinco USA Spring Kit includes a standard buffer spring and a heavy-duty five-coil bolt extractor spring designed specifically for the AR-15 platform. The buffer spring helps regulate the cycling of the action, contributing to reliable function and improved recoil management, while the bolt extractor spring enhances the extraction process, ensuring spent casings are ejected smoothly. This spring kit is frequently utilized in mid-length gas system builds chambered in 5.56 NATO, making it a solid choice for those looking to enhance the performance and reliability of their AR-15.
Specifications
Available Merchants(3)
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Price Alert
September 2026 on GunPartPicker
Spro USA Sprinco USA Spring KIT-Std Buffer & HD 5-Coil Bolt Extractor Spring ranked #21 of the 57 buffer springs builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since January 2026. All time, it ranks #17 of the 107 buffer springs builders have added. Builds with this buffer spring are mostly chambered in 5.56 NATO (70%, then .223 Wylde 15%), mostly on mid-length gas (67%, then carbine-length 19%), and mostly AR-15 (94%).
Today 2 of the 3 retailers we track have it in stock. Buying today, the lowest price is $21.99 at Brownells.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
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Rise Armament AR-15 Magazine Release Button - Rise Red
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all builds →Builds in the community that include the Sprinco Usa Spring Kit-Std Buffer & Hd 5-Coil Bolt Extractor Spring
| Build | Parts | Total |
|---|---|---|
 | 18 | $793.00 |
 | 29 | $6096.22 |
 | 18 | $2709.47 |
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