ATRS AT-15 mags no longer dropping free

[thegrandpoohbah]

I've notice lately that my ATRS 10 round mags no longer drop free out of my Colt Canada lower. Is this a common issue with them? My Gen 2 PMAG's still drop free properly so I know it's not the lower. Time for some metal LAR-15 mags?

 

[blaxsun]

You can also run Mapgul USGI L/Ranger plates for a bit of extra weight (and to minimize dings) on the metal LAR-15s, the aluminium couplers and polymer extensions.

 

[norlandgeese]

Plastic sidewall starting to bulge?
PMags can do that too once aged / well used.

 

[Trinimon]

Do you keep your mags loaded?

 

[polskadude]

Same issue here with a few of them. I have a whole bunch so I don't keep track which get used and which don't. I don't recall any not dropping free from ACR or Noveske lower. Last range trip I had a couple that didn't drop free from the Noveske.
None of them drop free from Aero, ever.

I don't keep any loaded. All are stored in the basement. Only some get used, some are probably new.

 

[thegrandpoohbah]

No, I don't keep them loaded.

Anyone here using the LAR-15 mags from GP Tactical? http://www.gptactical.com/en/products/c378146227/c378158750/p17643861.html

I just ordered a bunch with the ranger plates so we'll see how they perform.