Whocares- I'm betting you have a Gunslinger pack and not a Gunrunner. Mine just came in, the built in scabbard isn't even close to holding a scoped AR with any size mag inserted. I called Eberlestock, they said the Gunslinger is made for both boltguns and ARs, but is quite a bit bigger, while the Gunrunner is made for bolts. If I pull the mag out, my AR will just barely go in as far as the pistol grip, and even that takes some shoving and wiggling. On the up side, the AR stock rides at about the same height above the pack as a bolt gun, and I can leave the extra barrel channel tucked inside the pack. The pack itself is AWESOME and very well thought out, nothing but impressed so far. I can't imagine a better day pack for a bolt gun. When carrying the AR, I'll just have to insert the mag once it's removed from the pack (really not a deal breaker, I was just hoping it would work slightly better). Gonna give it a little field time tomorrow, report to come.