Silverback (150 Newton) APS 13mm Type Spring for SRS & TAC41 Net-Weight-(g)_818 05mm Inner Barrel LEX for

05mm Inner Barrel LEX for Marui M4A1 MWS GBBR (250mm / 10

as well as temperature and wear resistant hop-up bucking to name a few internal features that allow this gun to perform well right out f the box

Fit for 6mm Plastic Bullet only

Turnming or loosening screw

Outside lens is coated with H2X Anti-fog Technology

Silverback (150 Newton) APS 13mm Type Spring for SRS & TAC41 Net-Weight-(g)_818 05mm Inner Barrel LEX forSilverback (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