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
Nine Ball 16mm CW to 14mm CCW Thread Adapter for Tokyo Marui MK23 SOCOM - Airsoft Extreme
Picatinny Rail Adapter - Mark 23 - HKPARTS
A couple of guys on hkpro decided to do their own mk23 pic rail adapter, and it turned out great! : r/HecklerKoch
SOLD Primary Airsoft Adapter for MK23 | HopUp Airsoft
HK Mark 23 Rail Adapter (Tac-Light Model)
STL file MK23 Socom to HPA Drum magazine Adapter・3D printable design to download・Cults