Higher end guns I would offer the byer the opinion of a hard case ( a cheep Canadian tire one at least ). I have received rifles/shotguns with just a snap tye on the trigger or threw the mag well. But for the most part they have just come un locked or un tyed ( evan the one that come with there own locks included ) be shure and reforce the box ends( with extra cardboard so the muzzle won't poke threw ) and stuff the box with newspaper so it can't float around . I like to plastic wrap my boxes and duck tape the ends and any joints . If you do decide to lock it put the keys in a envelope and tape it to the in side of the box .