Report On Tapco 30rnd Box Mags
Posted 21 December 2004 - 03:51 PM
They arrived 8 days after I ordered them. Heavily covered in cosmoline as expected. After disassembly, cleanup, and reassembly, I determined that 8 of the 12 were indeed excellent condition. Most were slightly used, but had complete finish, and no rust, pits, dings, or any other damage. Springs were all without rust. Follower works smoothly in all of them, and they worked just fine in semi mode at a nearby range. (Didn't feel like driving further to where I can shoot FA mode just to test mags.)
Of the remaining four, 3 were what I would consider to be good to very good, but definitely not excellent. The fourth was excellent in every way except the lower lip was mashed and not easily repaired, and hence, that magazine wouldn't be functional.
I think Tapco did their best to send me excellent magazines, but the problem is that the cosmoline is so heavy that exact condition isn't readily apparent.
When I called, they cheerfully agreed to exchange my four magazines, and seemed well aware of the fact that the heavy cosmoline makes it difficult for them to make perfect hand selections.
Cleaning the cosmoline, having to send the mags back and then clean another batch is definitely a hassle; however, it's hard to beat $12.15 for excellent quality magazines. If you're both rich and have limited time and patience, then this option probably isn't for you. If you've got spare time and less money and don't mind doing a little work for a bargain, then this might be the way to go if you're looking for some more 30rnd box mags.
Posted 21 December 2004 - 03:54 PM
Posted 21 December 2004 - 07:50 PM
I have that in my parts washers,and when fresh, the cosmo melts off in a few minutes when warm (90F), and overnight if under 50F.
Posted 21 December 2004 - 08:54 PM
Posted 21 December 2004 - 10:44 PM
Posted 21 December 2004 - 11:49 PM
Posted 22 December 2004 - 02:12 AM
Posted 22 December 2004 - 01:24 PM
BTW, I think all newly obtained TSMG box mags should be disassembled, cleaned, follower tested for smooth movement, lightly re-oiled and then reassembled. Now that I have my improved mag anvil, I also gage, and shape if necessary, the mag lips. This also includes inspection and shaping of the front lip flare, though the anvil doesn't help with this.
Really, all of the solvents mentioned here are nasty, nasty chemicals and gloves and respirators should always be worn. In the short term, no damage is usually apparent, but the damage is cumulative, and eventually, at a miniumum, most people become very sensitive to these solvents if they are used extensively without proper protection, to the point that even minor exposures can cause great illness. Liver, CNS, and brain damage all occur to a lesser or greater degree.
Personally, i think MEK is one of the worst. Here's a link about MEK (and some others):