Small update: I've been busy breaking in the gun, and I love it! The guarder frame I purchased off the classifieds just arrived, and I'll be putting it in once I run out of duster.
I noticed that the bb tends to veer to the left about 4 inches from 20 feet away. I can compensate for it, but I'm wondering if I can do anything to fix it, short of putting in a tight bore barrel and new hop up rubber. I'm using airsoft elite .2's/.23's.
Perhaps I just need to break the hop up in a bit more, I have only put about 300 shots through the gun, and have been keeping it very well lubed.