Sprinco USA Spring Kit – Blue Enhanced Power Buffer Spring + XP 5-Coil Bolt Extractor Spring

Sprinco USA Spring Kit – Blue Enhanced Power Buffer Spring + XP 5-Coil Bolt Extractor Spring

This Sprinco USA spring kit pairs two precision AR-15 reliability upgrades in one package: the Blue Enhanced Power action/buffer (recoil) spring and the Extra-Power (XP) 5-coil bolt extractor spring. Both are wound from certified chrome-silicon wire that is heat-treated, stress-relieved and cryogenically processed for a long, fatigue-free service life.

Key features

• Complete AR-15 tuning kit – Blue Enhanced Power buffer spring plus the XP 5-coil bolt extractor spring
• Buffer spring delivers roughly 15% more load than the Mil-Spec White spring to tame over-gassed and suppressed builds
• Optimized for 12.5″–14.5″ SBRs, 16″ mid-length DI barrels and adjustable-gas-block uppers (pairs well with H2 / ST-T2 / DPMS Extra Heavy buffers)
• Reduces bolt bounce and smooths the cycle while staying gentle on case rims
• XP 5-coil extractor spring boosts extraction reliability in short barrels and dirty conditions
• Chrome-silicon wire, heat-treated, stress-relieved and cryogenically processed for durability
• Extractor kit includes the 5-coil spring, insert and Viton O-ring – tested to 200,000 cycles
• Plug-and-play installation – no modification to the rifle required

Specifications