Thanks for the interest, guys!
To answer Drew first, the shop I used to work at deals heavily with Leapers/UTG so I went with their nice little TactEdge red/green dot. For forty bucks it's not a bad sight at all, I have one on my HiPoint 995 and like it enough that I put one on the GSG. It's not small, but it's light, well-made and the whole red/green thing is nice. Easy to zero, too, even for a mediocre shot like me.
Comp23, thanks man! The whole rail thing was a little interesting for this rifle. Most of what's out there at a cheap price is airsoft stuff, I've come to find out, and if you read reviews on most of the cheap claw mounts, a lot of people are complaining that they're out of whack. So when a buddy had a genuine firearm claw mount he had recently pulled off his genuine-article MP5, I jumped on it. It wasn't hard to install at all. Loosen the screws, line the thing up, slap it on there, make sure it's in the right place and then evenly tighten and then snug the screws. Then go out and make "bang-bang" happen.
I really and genuinely do love this little rifle. Looks awesome, shoots smooth, fast and flawless and in this day-in-age, with ammo hard to find and hard to afford, .22 longrifle is where it's at!