Top takeaways

  1. SPRINCO USA's AR .308 Dual Extractor CS Spring Upgrade Kits feature heat-treated, cryogenically processed chrome silicon wirestock springs with molybdenum disulfide plating.
  2. The XP 5-Coil spring offers a heavier load than OEM springs, eliminating the need for D-Fender™ rings or CRANE Viton O-Rings, and is reliable across all 5.56 BBL lengths.
  3. These springs maintain performance even under extreme duty cycles and temperatures up to 750°F, and may be the only extractor springs needed for the life of your bolt.

Attributes

Delivery weight: 0.005kg

Item details

Made in USA