I'm using the BB as a neck carry knife. I pulled the clip out to show the small issue with left side carry. Sheath offers a flat surface for right side carry, not so for the left side. But, with a bit of flexing the short screws will work (I think slightly longer ones would be better). And as long as you don't mind the slight angle in the clip/sheath connection you are good to go. Also...
Weight info from the TOPS website...
Weight: 4.4oz
Weight w/ Sheath: 6.1oz
Mfg. Handcrafted in the USA