AR FRONT TAKE-DOWN PIN TOOL
STEP 1 : Insert take-down pin tool thru both take-down holes until the hole in the tool lines up with the hole on the receiver.
STEP 2 : Insert spring and pin thru the tool and into the receiver.
STEP 3 : Use a small punch as close to the diameter of the pin and hole as possible to depress and insert the spring and pin fully into the receiver.
STEP 4 : While the pin and spring are fully depressed by the punch, gently rotate up or down until the pin is captured in the receiver by the tool.
STEP 5 : Use the take-down pin to slowly push out the tool. As the take down pin advances thru, the set pin will snap into place into the take-down pin. Done.