no internals. it's not milled to accept a pin to reach the hammer either. Offer away
Edit: what I mean is that it's not milled for the pin to go all the way to where your hammer would be, should you choose to not go the mq route. Just have that slot milled and get yourself a midblock lower tube kit and you're good to go.
Last edited by Donut SD; 05-14-2013 at 01:03 AM.