Why no 5-round Grendel/ARC AICS mags? (Long .223 either)

[Tandog]

Not the prettiest, scratched it a little bit with a pair of needle nose I slightly widened the back of the lips and now it feeds just fine.

 

[khuber84]

View attachment 881524Not the prettiest, scratched it a little bit with a pair of needle nose I slightly widened the back of the lips and now it feeds just fine.

Nice! Tweaking billet feed keeps can be a lil nerve wracking. My UM XL dbm was too wide for prc cases and wouldn't hold more than 1 Rd without the spring/follower pushing them up through thr lips. I had to close them a lil for reliable feeding.