Inner magazines for GBLS Airsoft guns to use real gun PMAG magazines

BOM

GBLS Magazine BB Lib  ( For HP Mag) :  x1

M2 Head Threaded Insert (length: 3mm, OD 3.2mm) : x9

M3 Head Threaded Insert (length: 4mm, OD 5mm) : x2

M2 x 12mm or 13mm Flat Head Screw  : x6

M2 x 8mm Flat Head Screw  : x2

M2 x 12mm Socket Head Screw  : x1

M3 x 8mm Flat Head Screw  : x2

GHK Original Parts - AKM V3 Gas Magazine Following Spring ( AK3M-03 )