I am going to be picking one up from a local person this weekend (maybe later today!) and I need to know of anything I should look for (it is used, not sure how used yet, never seen it.) before I buy it. Any Glock-specific wear points on it? Supposed to be factory stock with just some night sites (unknown brand/style) Also wheres the cheapest place to get pinky plates for the Glock30 (45acp) mags? And some fullsize 45acp (G21?) mags w/ the grip extension.