Adran Moonweave, Killer Carpenter of the Neverwinter Wood, Shotgun pose.
This is Adran Moonweave, my buddy's D&D character. He's a hoot, which is why I have depicted him with a shotgun in this model. So this might be better as a post-apocalyptic sci-fi character, or if you just need an elven ranger with a shotgun for some reason.
This is the 1:72 scale version, a perfectly popular scale on its own, but also works for GURPS games on 1/2 inch hex grids (1yrd hex to 1/2inch hex = 1:72 scale) and should work fine alongside 20-23mm minis. If, for some reason, you wish to include an elven ranger with a shotgun in your model train set, I think it's close to OO or HO scale.
Photos depict 1:54 scale. Other poses are available.