Cashbricks Werksteam shows that you can fit the Marui MK23 SOCOM NBB Pistol with SRU PDW-K Kit with a some modification... "Hey Folks today we get our SRU-PDW Kits for Glock models from S.R.U GBB. So first thing we did try to get it work with a Marui MK 23. So with a little modification you can do it. In this little clip you can see the result."