Benchmaster double stack 9mm and ar mag rack, 12 magazines - BenchMaster Double Stack 9mm Mag Rack, 12 Magazines

Bought this and also the AR magazine rack for my Pelican ammo case to hold all my mags when at the range.
While they do their job effectively, the material is of relatively poor quality.
The material and glue 'melts' and left a thick and sticky residue on all my 9mm mags, with the sticky material difficult to remove. The AR one hasn't appeared to have had the same issue - but they are also plastic mags - 9mm are all metal (Beretta 92FS and Glock 19) mags.
The 9mm mags sit very tight and I agree with the previous reviewer to upside to the .45ACP double stacked version so there is a little more breathing space with the mag sizing. This may solve the problem, however, the material may still do the same thing if left in the sun/heat. I was shooting outdoors in 72º temps (with my case in the shade) and it occurred.
While I will continue to use these (until I find a better option), it is probably worth up-sizing as suggested.
Would be fine for home bench/gun vault but consider another option if you're taking the outside into weather.