Lemme get this straight.....
1 (one) $600 AK clone in trade for 2 (two!) Name Brand semi auto pistols worth around $600 each ......
Ummmmm ..... one of them is stolen, right? Or both rusted/altered in some way? Why would someone do that deal if everything is on the level?!?!?
Smell test: FAIL.
TheGolden Rule of Tool Use: "If you don't know what you are doing, DON'T."