Heckler and Koch MP5(SP89) 9mm Side Folding Stock Front K Grip Plastic SEF Lower Sear Ready  

Heckler and Koch MP5 with JAC Sear 3 pos pictogram, Vortex Strikefire optic, A2 stock.  This is a registered sear by JAC.  You could move the trigger pack over to any numbers of hosts...

Heckler and Koch MP5A3 9mm Factory Machine Gun (Not a conversion) MFG in 1981.  You can replace any parts with factory parts(You don't need to CLIP and Pin anything, time hammers, or weld...

Heckler and Koch MP5A3 9mm Factory Machine Gun (Not a conversion) MFG in 1981.  You can replace any parts with factory parts(You don't need to CLIP and Pin anything, time hammers, or weld...

Heckler and Koch MP5A3 9mm 4 Position 3rd Burst Lower A3 Stock Desirable Fleming Sear M-Lok Forend Surefire Flashlight GSL Phoenix Silencer  

Heckler and Koch MP5K-PDW 9mm Qualified Sear 4 Position / 3rd Burst Lower Host is a pistol MLOK Forend Surefire Flashlight GSL Fatman