Somebody asked me about the difference between the 9mm and 380 recoil spring. I can not find the thread, nor can i even find the forum i posted on, so im posting everywhere!**So here some 2 weeks later I broke it down so I could take the picture I promised. Here they are. 380 on the left, 9mm on the right. The 380 is much weaker and the 9mm is painted green. Notice the 9mm spring is made from heavier Guage wire also. Yes, the 380 spring is longer. Sorry for the delay.