I’d recommend a Lewis as well. As far as bipod guns though, I own an MG42, MG34, M60E6, Bren MKI, FG42 Type 1, HK23E, Colt BMR (BAR), Hotchkiss Portative, Jap Type 11, Jap Type 96, and Lewis Gun, and I’m sure a few others I can’t think of right now, and the Lewis Gun is actually the most enjoyable one to shoot. A real gem! It’s also usually in your price range, and a super cool and historical gun. But it!