Mossberg Dynamics VFC AR/MCX Efficiency Hammer Spring Upgrade

The Waldo VFC AR/MCX Efficiency Hammer Spring is precision-engineered for the VFC AR and MCX GBB platforms. Designed at 75% strength, this hammer spring delivers improved gas efficiency over the stock components. This part is compatible with all VFC AR based GBBRs (KS1, BCM, URGI, XM series etc), the VFC 416 GBBR and the APFG MCX GBBR. Price is inclusive of all labour costs.

All upgrade work (including parts/components) is carried out by Mossberg Dynamics, and is covered by a comprehensive 6 month warranty provided by Mossberg Dynamics effective from the date of delivery. Mossberg Dynamics also offers a lifetime of after-sales support.

Mossberg Dynamics warranty does not cover:

• Damage caused by misuse, neglect, or improper maintenance
• Wear from excessive use or unsuitable consumables (including incorrect batteries)
• User disassembly or further modification after delivery
• General cosmetic wear and consumable parts
• Damage caused by adverse weather/environments 

For more information, please email info@mossbergdynamics.com