Review on AOLS Aluminum Piston Steel Teeth by Jeremiah Vishwasrao

. I have personally tried this on two guns and it has not worked on either of them. A friend of mine also tried them on a pair of his AEGs and it just didn't work. The teeth on the piston don't match any gear set I've tried (including AOLS). And the tracks tend to move when you shoot, which can completely ruin your transmission. Just do yourself a favor and buy another flask. PS - I'm not saying this brand is bad because I bought a 14 1/2 tooth polycarbonate piston and it was fantastic (I have a separate review on that).