The edges aren't perfectly rounded, I've noticed. It still looks ever-so-blocky, not that I care much.
I did find it odd how there's both a red dot and a crosshair. Are they both necessary? Nitpick, but whatever.
Finally, I think the pistol is balanced fine as-is: it's a lot more powerful than you think. One full clip and a bash to the face is usually enough to take down a Cacodemon. Any more clipsize and it's be OP, and I'd hate to see the damage reduced considering how (rightfully) rare the ammo is.