Post by Mark
Grant,
The upper and lower receivers are sometimes tricky to assemble right as the forward section of the lower has a lip that fits just under the back of the magazine housing. this lip has to be aligned before the upper is fitted to the lower and turned. The trigger needs to be held down while the upper is fitted to the lower, the disasembly knob has to be pulled out and locked in the downward position before the upper can be "twisted" into place...
I guess that i don't quite understand what "pin behind the trigger you mean..
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Wanted to buy: MGC Sten MK3....trades?(still)
MGC MP40 Marushin MP40 Nakata MP40 TRC MP40
Modelgun manufacturers, past and present:CMC,CAW,Hudson,HWS,LS,MGC(R.I.P. 1960's~2007) Marushin,Marui,Kokusai,Shoei,Tanaka and Western Arms