Welcome to Watherforums! Here's what I'd check...Hello,
I am about to buy a PPK.
It's from 1973.
I wanted to ask what are the main things I should be careful inspecting it before buying it ?
Very well done. And very useful. Why not to put this into PP FAQ?Welcome to Watherforums! Here's what I'd check...
What type of PPK is it? Is it stainless or blue? What caliber is it? What percentage of blue is remaining...is there any pitting (or scratches or gouging on a stainless)? Does it have the box, accessories, instruction manual, and test target? Does it have both magazines, one with a finger extension? Are the grips original to the gun...are there any chips or cracks?
Check the sights and barrel crown for obvious damage. Do a compete function check according to the instructions in the manual (available online from Walther USA). Be sure the hammer drop safety works correctly and clicks easily on and off. Check the magazines for dents and function...the follower should move freely without binding (I'd take them apart and check the springs). The slide should lock back on both empty mags.
Remove the slide and check the recoil spring. With the safety off, push the firing pin in from the rear to be sure it's not broken and the tip isn't chipped. Check the indicator pin by pushing it up and in...should return under light spring pressure. The extractor should move freely under strong spring tension...be sure the tip isn't broken or chipped.
Make sure the frame has all of its little parts. The trigger guard shouldn't be dinged and the spring should be working. The barrel hood, chamber and rifling should be free of damage or pitting. The feed ramp should be free of gouges or damage. The hammer should move freely in concert with the hammer block. Check the ejector/slide stop...no chips or damage with the spring is in place and working.
That's just what pops into my head sitting here at the computer...you can be sure there's a lot I've missed. Your best bet is to take it to a gunsmith to be fully checked. Test fire it before buying if you can...or ask if you can return it if it doesn't work right. Good luck...