Silverback (150 Newton) APS 13mm Type Spring for SRS & TAC41

Silverback (150 Newton) APS 13mm Type Spring for SRS & TAC41 Metal Construction Design For Replace the Origianl Parts This spring is following the “APS 13 mm standard” (for 9 mm outside diameter spring guide). While being compressed at 99 mm in length, it delivers 150 Newton (+/- 5%, around 9 Kg of force). This spring received a black electrophoresis coating, and a laser marking to quickly identify the spring. Suitable For Silverback TAC41P/ SRS Series Airsoft Sniper Rifle Airsoft Guns (except push mechanism)