Waldo VFC AR/MCX Winter Hammer Spring
Mossberg Dynamics
£9.99
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 but can still be used all year around. That’s right, despite this being an overall weaker hammer spring you can still use this in peak summer on your usual green gasses. Waldo Dynamics performed some extensive testing in the last few months in climates all over the world and found no issues
Mossberg Dynamics's own words, read from their page.
Buy from MOSSBERG DYNAMICS LTDMOSSBERG DYNAMICS LTD is a UK retailer, not the maker. Price seen 2026-09-26. Not an affiliate link, we earn nothing from it.






