Factory Weight Recoil Spring 18 lb. – Wolff
Factory weighted Wolff Recoil Spring OEM 18.5 lb.
The Vepr 12 recoil assembly consists of two Springs. We recommend using this 18lb spring on the front half of the rod, and the factory spring in the rear in combination with the Dissident Arms Vepr 12 Competition Guide Rod ( Available here : http://dissidentarms.com/index.php/product/da-v12s12-competition-guide-rod/ ).
Enhanced function when using a muzzle device with significant recoil reduction such as the Dissident Arms Phoenix Comp and Custom Guns GK-03.