APS Spring 13mm - 90 Newton(SRS & TAC-41) Lens Protector This suppressor muzzle attachment system

This suppressor muzzle attachment system by compression O-ring allows installation of barrel spacer to use this item as a barrel extension (SBA-BBS-09 and SBA-BBS-12)

as it has a quick change spring system and Silverback includes 2 additional springs in the box

rifle bags

Results : 2+ spring gives between 2

APS Spring 13mm - 90 Newton(SRS & TAC-41) Lens Protector This suppressor muzzle attachment systemAPS 13 mm, 90 Newtons spring This spring is following the APS 13 mm standard (for 9 mm outside diameter spring guide). It will fit any rifle compatible with this standard, including all SRS (except push mechanism) and all TAC 41. While being compressed at 99 mm in length, it delivers 90 Newton (+ 5%, around 9 Kg of force). This spring received a black electrophoresis coating, and a laser marking to quickly identify the spring.