Sprinco USA Spring KIT Std Buffer Spring&enhanced 4COIL Extract Spring
Click to see full view
Spro USA
Overview
The Sprinco USA Spring Kit includes an enhanced buffer spring and a four-coil extractor spring, designed to improve the reliability and performance of your AR-15. The enhanced power of the buffer spring helps ensure consistent cycling and reduces the chance of malfunctions, while the four-coil extractor spring provides better extraction force, enhancing overall reliability during firing. This spring kit is often found in builds where dependable operation is a key focus, such as those intended for competitive shooting or tactical applications.
Specifications
Available Merchants(3)
Prices checked
Price Alert
Build history on GunPartPicker
Builders on GunPartPicker first added the Spro USA Sprinco USA Spring KIT Std Buffer Spring&enhanced 4COIL Extract Spring to a build in February 2026.
It was out of stock everywhere we track for all of September 2026, and today only Palmetto State Armory has it in stock. Buying today, the lowest price is $24.09 at Palmetto State Armory, above September's low of $21.99, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
Not sure which buffer spring to pick?
We ranked every buffer spring by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Buffer Spring Guide →Check it against the live catalog:
Frequently Built With
Popular alongside buffer springs on GunPartPicker
Wilson Combat AR-15 Lower Receiver Forged
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
Strike Industries Ambidextrous Magazine Release, Black - ARAMBIMRBK
Wilson Combat AR-15 Starburst Gunfighter Pistol Grip Black
CMMG AR-15 Carbine Buffer Assembly - 55CA977
CMMG AR-15 HD Pivot and Takedown Pin Parts KIT - 55AFF3B
No reviews yet. Be the first to review this product!