What have I found? Razorock SOmething

[Stikeyoda]

Hi all - I found this puppy at a fleamarket. Paid $10. Vendor said it was a Mamba, I said it wasn't. It looks like a MJ-90A, but it weighs 58g, my MJ-90A weighs 90g. It's handle is 45g, head & plate 13g; my MJ-90A is 76 and 14 respectively. my MJ has an A engraved in the base plate, the new one has nothing. In mine the posts do not go all the way through the base, the new one the posts are flush. I've searched but I cannot come up with what I have. Any help would be appreciated. It also looks like it has seen almost no use.

Thanks in advance.

 

[Stikeyoda]

I should have added the head geometries look different too. The new one has narrower space between plate and top cap. Loaned out my calipers so don't have a precise measurement.

 

[Jay21]

Before there was the A version, there was a regular version with a smaller blade gap that was extremely mild and was discontinued.