Soo I got a Toomey b1 pipe off of craigslist and the pipe end and the little exhaust piece that connects to the head dont seem to connect very well the piece on the head only slides into the expansion chamber maybe half a cm to 3/4 of a cm is that how its supposed to fit? I feel like it would leak. Do the springs keep it from leaking or what? Sorry new to blasters. And thank you ahead of time.