Product Details
                            HK21E HK23E SEF trigger box or trigger housing.  This is brand new, original HK German production, and the correct trigger box for your HK21E or HK23E. 
       
       Greatly improved over standard G3 trigger boxes that are found in most HK21E and HK23E clones.  The ejector lever areas are profiled differently, heat treated differently and the ejector support is double the size of the G3/33 boxes.
        
       ORIGINAL HK, MADE IN GERMANY
        
       CONDITION:  NEW
        
       HK PART NUMBER 221203