Heckler & Koch 45-Degree MR A4 Safety Selector, Semi-Auto
Genuine ambidextrous safety selector found on the MR556A4 and MR762A4 rifles.
Includes two levers, barrel and required roll pin for installation.
Not compatible with 416A5, MR556A1 and MR762A1 variants. May have compatibility issues with standard AR-15 triggers. These are known to work with factory triggers in MR A4 rifles as well as the Geissele MR556/MR762 triggers.
Will (verified owner) –
Truly excellent safety selector, but I learned the hard way it is not compatible with AR15 triggers. Unless you modify the selector barrel yourself, this is only for the Geissele HK trigger. I gave HK a chance and was reminded that they hate me for being poor and trying to piecemeal their unobtanium 416 platform.