Mita Magazine Extension for Tokyo Marui 17 Series GBB Pistols

"I originally planned to install this on the AAP01 standard magazine however while it fits it doesn't sit flush to the magazine causing leaks also I had to trim off a 1/4 inch of the tube/stack where the inlet/injection valve sits in on the base . There is a 1mm gap which I tried remedy it by adding 5 - 6 layers of teflon tape and it works somewhat but the leak is still there. Before adding the teflon tape the leak would be a gush, after adding the teflon tape it would be a hiss instead. Luckily I had a WE tech plastic glock magazine which installed perfectly fine with no modifications and no leaks. I did not check how many bb's it adds but from MITA's website they state 8 - 10 bb's. Overall while a bust for the AAP01 it was a win for my WE Tech plastic glock magazine.