Looks good, but not impressed with the mag well. - Ultradyne UD5 Chassis

I have only tried Magpul AICS magazines so far. It appears as Magpul has redesigned AICS long action mags in the last year or so. The feed lips are different and the mag itself is a bit taller. I installed an actual Remington 700 action and the bolt kept hitting the magazine lips. There is an adjustment on the mag well to move a tang up and down, but this would not fix the issue. There was way too much slop in the mag well. I could wiggle the magazine up and down, back and forth easily. Regardless of adjusting the tang, it was very easy to get the bolt to hang up on the magazine lips. I went to a gun shop that had some old stock of a magazine manufactured in 2018 and it looks substantially different. I did not have this issue with that mag. I will try other mags but for now I am a bit dissapointed.