I can't get my GR16 GBBR to shoot

[Mr Monkey Nuts]

That's with the hammer not cocked, when it's cocked it draws the striker back. It's should look like this

 

 

If you remove the bolt half from the upper reciever and place it on top of the trigger half with the mag in, does it form a very close fit and does the gas route fit into the magazine fully? The two halves should mate perfectly and There should be less than 1 mm clearance near the magazine.

 

Failing that, it's going to be a full strip, clean and re lube of the cylinder and bolt assembly. If it is dirty and giving a bit of extra resistance it could be slowing the action down enough to just dump all gas. As it relies on the bolt fully cycling to re cock the hammer and draw the striker back. If it doesn't re cock the trigger it leaves the striker foreward engaging the valve.

[MrCheesman94]

That's with the hammer not cocked, when it's cocked it draws the striker back. It's should look like this

 

 

If you remove the bolt half from the upper reciever and place it on top of the trigger half with the mag in, does it form a very close fit and does the gas route fit into the magazine fully? The two halves should mate perfectly and There should be less than 1 mm clearance near the magazine.

 

Failing that, it's going to be a full strip, clean and re lube of the cylinder and bolt assembly. If it is dirty and giving a bit of extra resistance it could be slowing the action down enough to just dump all gas. As it relies on the bolt fully cycling to re cock the hammer and draw the striker back. If it doesn't re cock the trigger it leaves the striker foreward engaging the valve.

i'm assuming that means mine is to far forward because the picture is not cocked on mine and it pushes the strike pad up

[Mr Monkey Nuts]

No yours is correct for when the hammer is not cocked, it can't fire and simulates the bolt being locked back. When you cock the hammer, it should line up like the one I pictured.

[MrCheesman94]

i have fixed the problem turns out the o-ring thats on the valve of the top half of the the gas box had been pushed up and loosened so found another one put it in place and no it works simple lol

[Guest PT247]

nice one :-)