I borrowed my aunt's Kahr K-9 and I'm now trying to clean it... got the manual and everything and the process seems straightforward... I cannot, for the life of me, get the slide lock pin out of the gun! I pulled the slide partly back, pushed with my finger, pushed with a screwdriver handle, tapped with a screwdriver handle, beat with a screwdriver handle... is there something I'm missing here? The pin doesn't budge at all... are Kahrs just always this tight at first? Anyone else have this problem?