"I have 4 Lonex Flash mags and 3 Black Bear flash mags. The Lonex mags are absolutely superior. At a glance, the metal on the Lonex mags is slightly more impressive but overall there is very little visual difference. If anything the dark black on the Black Bear mags looks quite fantastic. The trap door at the bottom of the Black Bear mags actually seems to be of a higher quality, same with the draw string itself.
I never review something without using it for at least day first and I only give strong reviews after at least a month of usage. After my first game day with the Black Bear mags (I've been using the Lonex for a long time now) I have some serious complaints.
1. The Black Bear mags fall out of my Tar 21. When it comes to airsoft I value mobility over just about everything else so if I'm moving from point A to point B im going to be sprinting. I've never had a Lonex mag fall out. Ever. I never had a Black Bear mag stay in. 100% of the time when I arrive at point B my Black Bear mag is going to be on the ground behind me. Please note that number, it's 100%. If my tar was missing a mag it was a Black Bear mag. It got so bad that at the end of the day I just couldn't deal with it anymore and only would put in a Black Bear mag if I knew I was staying put and if I did have to move that Black Bear mag was going to the dump pouch. Simply awful. Even worse, upon inspection after putting a Black Bear mag in the gun it was very easy to simply tug the bottom of the mag and pull it out of the gun. After smacking the bottom of the mag into the gun it was much more difficult to pull out but if you shook the gun enough the Black Bear mag would still fall out. The only way to pull a Lonex mag out of the gun was to push the mag release. I dunno about anyone else, but having a mag in the gun when I go to shoot it is pretty darn important. Before I totally give up on the Black Bear mags I'm going to try to build up the magazine catch and see if that helps, but this issue is pretty serious. If you plan on moving quickly you will need to hang onto the mag to make sure it stays in.
2. You have to use the draw string repeatedly. With the Lonex mags you can pull the string a few times and then expect to shoot at least 80% - 90% of the bbs in the mag. Sometimes I go through a whole Lonex mag with only a few up front pulls. The Black Bear mags to not seem to allow this. Before emptying a Black Bear mag you can expect to pull-wind it several different times. This doesn't kill the magazine but at this point it's only a slightly more convenient high cap.
3. The pull action sucks. The Black Bear mags don't let you pull as far, seem very tight, and start clicking pretty much right away, even when there are plenty of BBs to load and you know that it needs to be wound.
4. The plastic top is flimsy. Though this could be from dropping the mags a few times, the plastic around where the bb exits the mag is already splitting apart at the seam on the Black Bear mags. This causes bbs to shoot out on occasion if you ever go to prewind the magazines. Again, I've used the Lonex for a few months now and have no such issues. Sure I've dropped the magazines a few times since they fell out of the gun, but they really should be sturdy enough to handle some good drops before starting to come apart.
Overall, I'm really disappointed with the Black Bear mags. They are only about $2 cheaper than the Lonex. When I saw that megastore had flash mags I got pretty pumped but I'm definitely going to be steering clear of them. I definitely regret picking up three of them. I should have started with one just to test it out. I'm going to try to make lemonade from these lemons and fix the seam splitting and try to build up the magazine catch so they don't fall out of the gun but overall I'm very disappointed. At this point they are just a slightly more convenient high cap that will fall out of the gun without some modification. If you can get your hands on the Lonex version I highly recommend those."