If they're anything like the Sawfly's I'd stay away from them if you don't have an easy source for the lenses. I myself have a brand new pair that I was issued and haven't used yet, but all my buddies on course have gone through atleast one or two lenses since basic from the scratches. Easy for us since we just go swap them at the QM, but I'd hate to have to replace perscription lenses every 6 months or so...
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