Are there genuine ones without a logo or any sort of marking?  Picked one up here, teeth also seem a little sharper than my other 51T devices but those are all larger caliber.

I asked a similar question a while back.  Mine came with a silencer that I bought new.  It had no markings either, and was a bit different than others.  I'll see if I can find a picture.  The consensus was it was legit.

Edited to add picture.  It's the one on the left.  Please ignore the Domino's box.

Attached File

Where did you find these?  Thanks!