Ergonomic, intuitive, and fast. The Strike Switch is a patent pending modular safety selector designed from inception using human factor considerations to aid positive on safe, on fire manipulations. The unique toggle action allows one to quickly engage the safety when moving positions without altering the firing grip. The extended lever arm serves as an index point and thumb rest in either position. Adding to the modularity, the Strike Switch is end user configurable to use a 60 or 90 Degree throw, left hand, right hand, or ambidexterous configurations. The levers are machined from lightweight, but strong aircraft grade aluminum for weight savings, while the safety shaft itself is machined from high strength steel for a lifetime of use.Package includes:- 2x Shaft Screw- 1x 60/90 Shaft- 1x End Cap- 1x Right Side Strike Switch- 1x Left Side Strike SwitchFeatures- Ambidexterous- Ergonomic Shape- Modular Assembly- Precision Machined- Strike 60/90 Option- Aircraft Grade 6061-T6 Aluminum Levers with Steel Selector ShaftAvailable Colors:Black | Blue | FDE | Grey | RedNOTE: Will NOT fit .308 pattern lower receivers with shelf (DPMS, Bushmaster), ATI Omni Hybrid (all calibers), Seekins Precision SP 223 Gen 2, or F-1 Firearms Receivers, without modification to receiver or selector switch.Note: Not compatible with Hiperfire Triggers