6.5 grendel mag - CMMG, Inc AR-15 6.5 Grendel Magazine, 10Rd

I ordered two mags and one worked perfectly right away. The other was causing the bullet to jam against the feed ramp. If I pushed up on the jamming one it workeg. I took it apart and put some divits in the rear of the mag with a hammer and center punch to change the feed angle slightly and worked on the metal that holds the stack down. Now both work good.