HK Mark 23 Picatinny Rail Adapter--Tac-Laser Model-with Thumb Wheel
MK23 STTI - MP5 Adapter
GG&G Mark 23 Rail Adapter | Page 4 | HKPRO Forums
Finally finished printing a carbine kit for my mk23. HPA adapter by Primary Airsoft, 310mm Crazy Jet Barrel, as well as all the other standard mk23 upgrades. : r/airsoft
STL file MP5 HPA Adapter for Mk23 Marui/STTI・3D printable model to download・Cults
HK Mark 23 (SOCOM) Picatinny Rail Adapter (Tac-Laser Model)
STL file MK23 TO M4 HPA ADAPTER・3D printer model to download・Cults
STL file STANDARD MK23 to MP5 Adapter・3D print design to download・Cults