CMMG Inc Ambidextrous Safety Selector Kit AR-15. Specifications for CMMG Inc Ambidextrous Safety Selector Kit: Manufacturer: CMMG Color: Black Gun Model: M16 M4 AR-15 Fabric/Material: 4140 Steel Hand: Ambidextrous Condition: New Features of CMMG Inc AR15 Ambidextrous Safety Selector Kit: Replaces the existing Safety Selector Ambidextrous Function Package Contents: CMMG AR15 Ambi Safety Selector Kit 55CA6D9 What firearm models does the manufacturer say CMMG Inc Ambidextrous Safety Selector Kit is compatible with? The manufacturer suggests that CMMG Inc Ambidextrous Safety Selector Kit is compatible with AR-15 M4 M16CMMG 55CA6D9: Ambidextrous Safety Selector Kit AR15