Upgrade your firearm's reliability with SPRINCO USA's premium extractor springs!
Sprinco’s Extractor Springs are expertly crafted from chrome silicon wirestock that has undergone heat treatment, stress relief, and cryogenic processing post winding. Each spring is also plated with a re-micronized molybdenum disulfide formulation, enhancing durability and performance.
Key Advantages:
- XP 5-Coil Spring: This spring offers a heavier load compared to OEM springs, eliminating the need for a D-Fender™ ring or CRANE Viton O-Rings.
- Compatible with either black extractor spring insert OR CRANE Viton O-Rings, but not both simultaneously.
- Enhanced 4-Coil Springs: These springs maintain an extended duty cycle load equivalent to a NEW Mil-Spec spring, making them ideal for 18" + BBL lengths, particularly for those who retrieve brass for reloading.
- The XP 5-Coil spring is reliable for all 5.56 BBL lengths, but may be aggressive on case rims in 18" + length BBL rifles and could be too strong for bolts with extremely tight tolerances.
- Provides extreme duty cycles while maintaining performance specifications.
- Unaffected by heat up to 750°F.
- Note: D-Fender™ rings are NOT recommended for use with our 5-Coil extractor springs.
- Dual spring XP .308 extractor spring sets can be utilized with or without CRANE O-rings, and may be necessary for use in DPMS G2 Bolts for full-auto applications.
- Plug & play - These may easily be the only extractor springs needed for the life of your bolt!