My new L3I came in yesterday.. I grabbed my MPA that I have had issues with in the past. I set it up and started working on tuning the mag. For me, it has to be almost all the way up..Let me admit here, that I did not have a high hopes of the mags, I had 2 friends that bought some early one, and both gave them troubles..They did call L3I and they did send stuff to fix it but it didn't work so they just gave up..Anyway, the newer version ran great in my MPA..I bet i ran about 100 rounds thru it and it worked perfect..The I decided to go outside, set up the barricade, slap a bag on the barricade, push the mag into the barricade, then run it..again it work great..That is something i have never been able to do with that gun..So to make it even worse, this time, I pushed the ever lovin F*#) out of it into the bag and i mean straight back into the magazine with all i had, and i ran about 4 mags flawlessly..So, that all being said, my hat is off to the L3I people, it worked great! If you have problems it really is work the try...I doubt that i will ever have to use the mag bar protector thing again.
When i pushed the ever lovin crap out of it, it ran good but I did shave some of the bullets off on the left hand side..It was a small amount, it wasnt even a half moon shape, just enough to build up on the face..I do not slight the mag at all, as I would never push that gun that hard in a match, meaning the mag would never be angled to that extent but most importantly is still fed..