Upgrade your extractor performance with SPRINCO USA's innovative kits!
Sprinco’s Extractor Springs are crafted from premium chrome silicon wirestock that undergoes heat treatment, stress relief, and cryogenic processing after winding, ensuring durability and reliability. Each spring is plated with a re-micronized molybdenum disulfide formulation for enhanced performance.
Key Advantages:
- XP 5-Coil Spring: Offers a heavier spring load compared to OEM springs, eliminating the need for a D-Fender™ ring or CRANE Viton O-Rings.
- Compatibility: Use the 5-Coil spring with either a black extractor spring insert or CRANE Viton O-Rings, but not both simultaneously.
- Extended Duty Cycle: Enhanced 4-Coil springs maintain a load equivalent to a NEW Mil-Spec spring, ideal for 18"+ BBL lengths, especially for those who retrieve brass for reloading.
- Performance: The XP 5-Coil spring is reliable across all 5.56 BBL lengths, though it may be aggressive on case rims in 18"+ BBL rifles and could be too strong for bolts with extremely tight tolerances.
- Extreme Duty Cycles: Designed to provide exceptional performance specifications while remaining unaffected by heat up to 750°F.
- Compatibility Note: D-Fender™ rings are NOT recommended with our 5-Coil extractor springs.
- Dual Spring Sets: XP .308 extractor spring sets can be used with or without CRANE O-rings, which may be necessary for full-auto use in DPMS G2 Bolts.
- Easy Installation: Plug & play design makes these extractor springs potentially the only ones needed for the life of your bolt!