Unless you want to loose your religion don't ever take that puppy down to pins and springs! Setting the sear safety can be one very nasty experience!! It is a fun little pistola though and the 9X18 doesn't get near the mention it should.
You will love it. It does not have a decocker on it, but the grips are the most comfortable military pistol grip I have ever held. Get at least two mags if it didn't come with two. You may still want to get 1 or two more anyway. 9mm Mak is available locally but it is expensive, get yours online and save about $15 - $20 per box. At the last gun show I got 400 rounds of Wolf ammo for $50 (SWEET!!!!). Hollow points are available as are some personal defense rounds. Hard to find it though.
You will most likely need to replace the mainspring with a newer, stronger one. You will know why the first time you shoot it.
If it needs to be replaced, it will sling brass into the next time zone while slamming the slide into the stops so hard, you will wonder if the hammer just smacked your hand between thumb and fore finger. Wolffe Springs makes a 3 pak for this pistol which contains a #14 (original), #16, and #20 pound spring. I found the #16 to be the better of the three. It softens the recoil while still being easy to hand cycle the slide.
The 9mm Makarov is a tad larger than the 9mm Parabellum but has a lower velocity.
The original barrel is nearly smooth but is cut in a polygon manner that imparts spin. Some have been re-barreled to a standard rifled type.
To clean, ensure the weapon is empty. Cock the weapon and pull down on the trigger guard until it snaps. Now pull the slide backward and it will detach from the frame. That's it, the weapon is now disassembled for cleaning.
To reassemble, put the spring over the barrel, place the barrel into the slide and pull backward. Push down on the back of the slide to engage the rails and allow it to move forward. Push the trigger guard up until it locks. The weapon is now reassembled.
Well, to put it lightly I am an AIM Surplus fan. I got my CZ82 del to my house today, and Wow. Its practically new. One mag is a bit worn, but the gun and other mag are Like new. I had to nitpick the darned thing to find a flaw. I treat my guns well, but I use them. This one looks like one that should fit right in.