jamming issue resolved

[compshell]

mag was to blame-

[nate76239]

Is your lower the same as this guy's? On second thought it looks like you both have the same upper

http://www.calguns.net/calgunforum/showthread.php?t=1277726

[kcheung2]

So both OP and the guy in the other thread are using 80% lowers. Interesting.

[nate76239]

Yes, I read through the other thread and it seems he is having a similar issue almost exact. I am going to reach out to the maker of the lower to see if they have had any issues? I'll try to dig up DMPS /lr308 blue prints and measure the mag catch against the prints. I suspect either that is off by 1-2mm , or something is up with the upper not liking the lower? I tried another apf bolt and same issue. No binding in the CH and the bolt/action will say open with an empty Pmag?

The only solution I can come up with is welding material to the mag catch to gain a tighter lock up? Im lost here- should have stuck with bolt guns for my 308+ up setups.

The top of the mag catch slot on mine is 0.650 inches from the top of the lower, looks like it's 0.250 wide so the bottom of the slot is 0.9 inches. I have a Quentin Defense lower, it has worked with a DPMS Oracle upper and a Daytona tactical upper