ZM51 Assembly Guide
Step 1: Locate the two screws pictured below. They will both have Philips heads.
Step 2: Gently remove the two grip pieces from the side of
the stock as seen below
Step 3: Line up the stock with the body of the gun and slide
the stock onto the body piece as shown below
Step 4: Insert the screws in the correct holes (Long screw
on top, short screw on bottom) and screw them down
Step 5: Snap the grip pieces back on and its ready to go.