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What are the differences between Scrap Muk and Scrap Muk LE?
The Muk is not numbered, and has a black Mudder grip.
The Muk L.E. is numbered, and has a silver-gray Mudder grip.

The Bird Dog was also produced in a non-L.E. version, too. Unlike the non-L.E. Muk, it is sans the 154 CM etch.