Yes, L96 internals are very similar to the VSR, except the Hop-up is way worse (which is the main part) and the loading fin device can be problematic. Obviously the longer the gun, the more difficult to manage/wield, but that's a personal thing. Same goes for heavier versus lighter, but either you can make it work or you can't. Usually the shorter you are the more trouble longer guns will give you trouble. Sniper rifles are a huge cost versus time investment to be even worth to field and there's still a 95% chance we'll tuned AR's will beat you up. Even if you're stuck on a sniper rifle project, which is okay, it's 100% advisable to get yourself a solid AR platform first, so you always have a gun.
I didn't like the E2 version over the original. They don't seem to handle green gas as well and it becomes sluggish. Original style P226 will run for ten years most cases, without issue if you clean it/maintain it, etc.
1911 side profile is tricky. It's almost as wide front to back as an average 9mm, but not quite and they're much slimmer side to side.
Don't worry about your paintball style so much, as airsoft is typically a little different, so you'll have to acclimate one way or another. There's enough similarities though that you'll be alright.
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