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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
Production run 2 – 22/06/26
XM series etc)
Install video here
Update 23/04/25 - Now made from Injection Moulded ABS - Install tips on latest version here
Waldo Dynamics VFC AR/MCX Winter Hammer Spring Production run 2 – 22/06/26A 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
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