Ammunition Storage Components Stainless Steel .308 Win Magazine - 20 Round

Having multiple brands of lowers I only have 1 it doesn't work/function in/with, Aero Precision. With no mil-spec in large frame receivers is the issue. I have 5 asc 308win mags that fit and function reliably in without mods to the mag catch or lower itself. The difference between it fitting/functioning with certain lowers is 1/80 or .0125" (as best as I can measure). The catch area on this mag sits that much lower that the top of the catch in Aero lowers. I haven't had any follower issues with about 1k rounds combined (200 each of m80) in these 5 mags. Not able to attach images as it might be a plus if so.

The issue with it not working in Aero Precision the mag catch to feedlip difference of a +.0125" (1/80"). Either remove material from the top portion of the mag catch or remove material from the top portion of the mag catch hole on the mag. These mags work great in my Ghost Firearms lower without adjustments. No issues with the follower or fte/ftf.

I buy and use these mags. Works great with no problems . I like this brand .

The rounded springs are the problem. Order Wolff Squared Replacement AR-308 Springs. Simply Shorten the Wolff Spring a few coils so they fit the follower and base plate in the same direction like OEM. Presto runs perfectly.
While mag is dismantled insert it in the mag well while depressing the catch, release the catch and if it does not engage file raise the squared opening in the mag accordingly.

Battle proven is wht I choose metal mags.

Rounds 1-14 function fine, 15-20 will jam up. Significant burrs on the feed lips and front prongs (?) leave deep gouges in brass.

I usually don't write reviews but I thought it necessary to make potential buyers aware. I built an Aero M5 and this magazine would lock into place but would not allow the bolt to travel forward. Had to use a file to open up the mag lips .05" in order for the BCG to travel freely. Front portion was also filed down to aid in loading/feeding. I bought this mag due to the longer cartridge OAL but not sure it was worth the hassle of making is usable.

I went into buying these reading that they “don’t work” for PSA PA10 AR10 Gen2…. They don’t. The feed lips are a few thousandths too narrow to allow the psa bolt to slide through. Also a couple thousands rounded off the top of the feed lips and bam they lock in great! Besides being questionable spec for some builds, the quality of the body is great. A great deal as long as you are willing and able to spend a few minutes with each one to make it fit right. I used a cold blue pen to touch them up after a few seconds or dremel’ing. Look great, function fine in my PA10 G2 now. You have to be handy. If not, stick to the Pmags.

Function is superb, looks great also!!! Good value!!!

These magazines are awesome.. The compact look and detail is really nice.. Very excited about this purchase