Retrofit kit (sep. 2017 update)

SBA-KIT-02BK
SBA-KIT-02FDE
SBA-KIT-02OD

If your SRS was release before september 2017, you can update it by purchasing this kit, comprising:

• Stock panels (available in black, flat dark earth or olive drab)
• Piston sear
• Trigger box
• Feeding tube
• Magcatch