THF, I have a Glock 31 Gen 3 357 Sig. I took it in trade from a fellow THFer several years ago. He was a LEO and bought this for a duty weapon but then left LE. It shows only the tiniest amount of wear. It does NOT come with a box. Previous owner had lost it and I keep it in a safe, transport it in a soft case. The previous owner had a gunsmith put night sights on it and they are still bright. It comes with 2 Glock mags and 25 rounds of Speer Gold Dot hollow points and about 70 rounds of Winchester white box. (I'm remembering how fun this gun is to shoot and I may burn some of those Winchesters)
I've fired about 100 rounds through it and it performed flawlessly, of course. The structure of the 357 cartridge lends itself well to easy feeding on top of the Glock reliability. If you'd like pics of the gun broken down or a pic down the barrel just pm and I'll get them back to you via text.
$450 and I am willing to consider trades. I'm in Abilene but I get to the metroplex from time to time as well as Midland, Odessa, Lubbock, Austin and San Antonio.