Sig P232 380
...
It may work the same as my Sig 380.
First, my 380 does not have a manual slide lock, as most semi's do, rather, when it has fired it's last round, then the slide automatically stays open, until you reload a full mag and pull it back a hair, and release it. Or, simply, if it is empty, then I can slide it back and it locks, and to release it, I have to then remove the magazine first, then pull back and it then slides full forward. So, if this is how yours works, or you do have a manual slide lock on the outside, use that.
With the magazine out, and the slide is now back to full forward, then release your slide release lock key/lever, the one in front of the trigger guard, below the barrel, on the side bottom gun frame, it should, or, mine goes vertical for the slide/retainer release, from a horizontal lock mode.
Once you get the slide lock lever in the unlocked position, then, in my case, I pull/push the slide back, maybe half way to its normal stop point, where there is a slit, and then you/I lift up the back part of the slide, freeing it from the rail guides, then gently move/slide it forward out, but over, the barrel until it is clear of the barrel. Then you/I remove the long spring, and clean.
Reverse the process to put it back on, spring back on over the barrel, then gently take the slide and start it over the front of the barrel and back, until you get to the spot where the slit is (where it popped up and off) and let it down there, and it's on. Then, in my case, re-lock it with the slide locking lever.
Hope this works for your gun.
LS
PS.. very important, least with my gun spring, make sure you know which end went where, as with my gun, the spring is slightly wider at the front-end of the barrel, and slightly smaller in diameter, over and to the very rear of the barrel, where it sets tight, in a back of the barrel, grove.
WOW! had no idea this would be this long/much, but the/my 380 is, by far, more complicated to disassemble, and reassemble, as my other listed guns, by far.. lol
