MK23 SSX23/303 IMPROVED HAMMER SPRING

-Fits all NBB Mk23 on the market, include TM, ASG, STTI, Novritsch ssx23/303

-Dimensions changed to increase acceleration of the hammer with lower spring strenght. Resulting is lighter trigger pull and even slight increase in muzzle energy.

-Made of oil tempered japan made steel wire

-To further increase smoothness of loading pair it with PEEK feedlips: https://sniperupgrades.com/product-category/all/mk23-parts/