CMMG Inc Cam Pin AR-15. 56 Cam Pin Standard Mil-spec Specifications for CMMG Inc 5.56 Cam Pin Stand Mil-Spec: Manufacturer: CMMG Gun Model: AR-15 Color: Black Package Contents: CMMG Inc 5.56 Cam Pin Stand Mil-spec The CMMG Inc 5.56 Cam Pin Stand Mil-spec is a quality addition to the CMMG lineup. For more great deals on AR 15 Parts by CMMG please browse our CMMG Inc Gun Parts page. What firearm models does the manufacturer say CMMG Inc 5.56 Cam Pin Stand Mil-Spec is compatible with? The manufacturer suggests that CMMG Inc 5.56 Cam Pin Stand Mil-Spec is compatible with AR-15CMMG Inc 5.56 Cam Pin Stand Mil-spec - 55BA46C