Please Help Identify Military Action Figure Accessories
 

Hi everyone,
The following pieces were included in a GI Joe lot I recently purchased but I'm not familiar with these accessories at all. They look like they would fit the 1960's-70's Joes but they almost look like they would fit a larger figure. The Walkie Talkie is almost 2" tall and has a retractable antenna. The last photo looks like some sort of chin strap. Any help with identifying these pieces is greatly appreciated. Thanks!
Jeff

Any help with these? Thanks!
Jeff

Well before my time, but the green submachine gun looks like maybe Marx's Stony Smith. Maybe the chin strap, too.

Thanks Sean, the Green Submachine Gun & Chin Strap is 100% Marx's Stony Smith! Any idea on the other two pieces? The scale is larger than the Stony Smith Accessories.
Jeff