Sprinco AR15 Bolt Upgrade Spring Kit

Description

Enhance the reliability of your AR15 with our essential Bolt Tuning Kit, designed to perfect the crucial functions of extraction and ejection. A common issue in standard bolts is the presence of an inferior extractor spring often masked with a rubber “donut.” Our kit exclusively uses high-quality, donut-free Sprinco 5 coil springs with a rubber insert, ensuring flawless performance.

We also address the vital role of ejection, which involves discarding spent shells to make room for new cartridges. Over time, ejector springs degrade—typically after about 5,000 rounds. Our kit includes a durable Sprinco ejector spring paired with a reusable stainless steel coiled roll pin, replacing less reliable split roll pins that are not meant for multiple uses.

Choose our AR15 Bolt Upgrade Kit for an all-in-one solution featuring both the ejector and extractor springs. For those who value consistency and quality in their builds, our TX Arms BCG comes standard with these top-tier components, confirming that your setup embodies excellence from the start.

This is a tuning kit for some of what we think the essentials are for upgrading the bolt on your AR15 rifle.

Sprinco M4 / AR-15 Extra Power 5-Coil Extractor Spring and Insert

These are extra power extractor springs for your AR15 bolt. These do NOT require the rubber o-ring commonly found under your extractor in your modern day BCG. You should only run this extra power spring and the spring insert included.

Just like their buffer springs, the Sprinco AR-15 Extractor Springs are made from high quality Chrome Silicon wire stock that has been heat treated, stress relieved, and cryogenically processed to produce long lasting durability. This 5 coil extractor spring is designed for AR-15 bolt carrier groups and provides a higher spring load than OEM springs for more reliable extraction in adverse conditions. Whether you are replacing worn springs or setting some aside for future use, Sprinco springs are the only ones you will ever need.

Features:

• 5 coil design
• For AR-15 BCG
• Made from Chrome Silicon wire stock
• Heat treated, stress relieved, and cryogenically processed
• Easy to install

Sprinco AR-15 Enhanced Ejector Spring / Safety Selector Detent Spring

Just like their buffer springs, the Sprinco AR-15 Ejector Springs are made from high quality Chrome Silicon wire stock that has been heat treated, stress relieved, and cryogenically processed to produce long lasting durability. This ejector spring is designed for AR-15 bolt carrier groups and provides a similar spring pressure to OEM but will keep that pressure much longer. Whether you are replacing worn springs or setting some aside for future use, Sprinco springs are the only ones you will ever need.

Note: This spring doubles as the AR-15 / AR-10 Safety Selector Detent Spring.

Features:

• For AR-15 BCG
• Made from Chrome Silicon wire stock
• Heat treated, stress relieved, and cryogenically processed
• Much longer service life than OEM
• Improves reliability