I've never seen or held an MP-05 in person so I have no idea how big it is relative to a real firearm - but from reports I've read, it's substantially bigger than the Walther P-38 that it's meant to resemble.
Is it still large enough to resemble another large pistol (like a
Desert Eagle for example) or is it just ridiculously large and oversized that it surely can't be mistaken for a real handgun?