There was a guy with this super badass looking APS2 that was upgraded to the tits. It had a pretty cool body too. Pretty sure it was the Laylax PSS2 body from reference pics I can find.
Anyways, other than the APS2, VSR-10, and maybe the Tanaka M700 (I would love to get my hands on one but no money makes me
or maybe a Marushin Garand... that's sexy but I'd be too scared to take it out to play with and would only keep it as a display piece)