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Ships within 48 hours · Estimated delivery Aug 30 - Sep 4
Install video here
This is just a very simple upgrade over the stock spring that can be installed within 3 minutes (video guide here)
Fits all VFC EVO Hop chamber based VFC ARs which are included in the below models:
and we're forever impressed with it
XM series etc)
Waldo Dynamics VFC AR/MCX Winter Hammer Spring Install video hereA drop in hammer spring replacement which allow your VFC AR APFG MCX to be more gas efficient and work better in colder weather. From Waldo Dynamics The One Spring You Need For Efficiency All Year Round Boost your VFC GBBRs performance year round with the Waldo Dynamics Winter Hammer Spring, precision engineered for the VFC AR and MCX GBBR platforms. Designed at 75% strength, this hammer spring delivers improved gas efficiency over the stock component
