• Captured one-piece design replaces both buffer and action spring
  • H4 weight — heavier than factory carbine (H1), tunes hot loads and shorter gas systems
  • Multi-stage internal spring softens felt recoil and impulse
  • Sealed housing eliminates spring rattle and noise
  • Drop-in install — no tuning, no shims

Full details and secure checkout: https://3crtactical.com/armaspec-stealth-recoil-spring-carbine-g4/?utm_source=armslist&utm_medium=referral&utm_campaign=listing