Upgrade your rifle with the Waldo Dynamics 85% Winter Recoil Spring, precision-engineered for VFC 416 and M4 GBB platforms. Designed at 85% strength, this spring strikes the ideal balance between improved gas efficiency and crisp, responsive recoil. The reduced tension allows for more consistent operation in colder temperatures while still maintaining reliable cycling and a snappy recoil impulse in warmer conditions. Whether you’re playing through winter months or simply want smoother, more efficient performance year-round, this is a simple upgrade that makes a noticeable difference.

Finished in Waldo’s distinctive blue friction-reducing coating, it delivers smoother cycling, enhanced durability, and easy identification on your tech bench. Compatible with VFC 416 / M4 GBBRs and other WA-derivative systems, it’s trusted by techs and field-tested by serious players looking to maximise efficiency without sacrificing feel. The end of the spring with the tighter coil grouping is designed to sit against the recoil buffer (see product images for reference). Please note: recoil buffer not included.