You are much better off buying a silva or brunton. Are you in the military and want one for some specific reason? If so then go with that you have researched. If not, then go with a civilian model. Being in the Marines, the ability to use a compass is very important, and I use the silva explorer.
Just my 2 cents
Garrett
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On occasion of every accident that befalls you, remember to turn to yourself and inquire what power you have for turning it to use. - Epictetus