This is the SHORT picatinny rail option for the STEYR AUG A3 M1 ( ONLY ) will not fit the older AUG A3 A2 A1 and USR receivers Remove the existing option with a 4mm HEX head tool and will require some force ( NO HEAT) as it is installed with BLUE thread locker

Brand : Steyr

Item : STEYR_1252020042

SKU :

Model :

UPC : 688218706985