Making a run on a defensive knivfe pattern and I am considering M4 as something new to work with. I have mostly used S30V and looking to try something else.

I love what I am hearing about the overall profile of M4 but I'm looking for feedback on corrosion for a knife carried close to the body. Any other steels I should consider? The design is a pikal style, will be 1/10" or possibly 1/8" with a high flat grind and a thin edge. Heat treat will be farmed out to Bo's heat treating so I am not worried if that is a pain in the butt.

Thanks for any insight.


Hunt hard, kill clean, waste nothing and offer no apologies.

"In rifle work, group size is of some interest...but it is well to remember that a rifleman does not shoot groups, he shoots shots." Jeff Cooper