TSD MAG-15 M4 Magazine Torture Test By US Mil Personnel
As soon as the first TSD MAG-15s came in we shipped them out to our friends in the US Military community for testing. Here is a write up that was sent to us, and posted at warriortalk.com, on their torture testing of the best magazine for the M4 system. Here is his commentary. By the way…notice the TSD Combat Systems RMR Glock 19 in the pics?
Ok guys I want to share some of the torture testing of the TSD-MAG15 magazines that we conducted yesterday. Basically what we did was treat one of the new mags very vary badly and then tested its function.
I started out by simply test firing the magazines during some of our standard M-4 courses of fire (approximately 600 rounds spread across four different magazines). They all functioned reliably in slow, rapid, and full-auto fire. The magazines were always loaded to the full capacity of 30 rounds and were compatible with standard stripper clip speed-loaders.
I also tested the MAG-15′s compatibility with the M249 Squad Automatic Weapon and it fit and functioned 100% during a 4 mag test.
Additionally, one of my M203 (grenade launcher) guys said that he really liked the aggressive texture of the magazine while using it as the grip to shoot the launcher.
I selected one magazine to be the “Tortured Soul” and marked it with black paper masking tape (selected because it wouldn’t add to the strength of the mag)

We were going to be conducting some helo infil / exfil and fast rope training later in the day so I took the opportunity to have one of my guys “Air Mail” the tortured MAG15 from 70 feet onto concrete. Results of the test were great, the magazine remained intact and only one round popped free…..For a 70 foot drop from a Blackhawk that is pretty good.
Next we tied the loaded torture test mag to the back of a HMMWV with some paracord and took it for “Toad’s Wild Ride” ;1 mile on a gravel road at approximately 20 MPH.It got kind of beat up but the rounds remained intact and no structural damage was noted.
We figured since we had a 12,000 pound “Up-Armored” HMMWV we may as well run the tortured mag over….No cracks or feed lip deformation was noted.
Since we all know that DEET is not known for being healthy for plastics (or people either) but we often bathe in the stuff when we are operating in some unpleasant places. We thought it prudent to see if it would cause any damage.So I soaked the internals of the magazine with the old school 100% DEET “Bug Juice”……yeah like the kind our dads used in Vietnam. Then let it sit and stew for a few hours.
Time for test fire…….I fired the tortured mag with ZERO malfunctions with a few bursts of full-auto….
Here is the tortured TSD-MAG15 after the tests.
I was very pleased with the results of this evaluation and I can say with confidence that I will have absolutely NO reservations carrying these magazines in combat!










