[Door Gunner]

I just finnished my first build tonight, Its all together smoth as silk but it wont drop the fireing pin. maybe I diddent trim that edge off the back of the barrel EXT correctly can that cause this?

 

[Lucky#13]

Check the trigger adjustment screw. That can prevent the trigger from setting properly.

 

[M1 Tanker]

If the screw sticks out too far, the trigger will not move far enough to fire. As Lucky said, check the screw.

 

[Door Gunner]

Yep, That was It snaps perfect now thanks Guys