So my fairly stock M2 that has never given me problems has finally got one. The final shell in the tube is coming out onto the carrier and not lifting into the chamber. I have to tap on the bottom of the carrier and it lifts with little pressure. I have a 9 rd tube and I changed the extension tube spring to one with more pressure since intially the rounds were sticking 1/2 in the tube and 1/2 out on the carrier. I have also cleaned out the recoil tube assembly but did not change the recoil spring.
Help me out
Thanks
Trip