I heard about these bayonets a while back but haven't been able to get any definitive information on them yet. "the grip adapted from the OKC marine bayonet". I think it's the other way around. The USMC bayonet (OKC3S) grip was adapted from this grip. Prior to the latest USMC bayonet trials, Ontario put together a small number of bayonets to illustrate to the USMC that they had an "off the shelf" bayonet that met the USMC requirements. Those bayonets had a grip identical to the new M10 bayonet. I think there's a very good chance that Ontario had a bunch of these grips laying around and wanted to get rid of them. They then put together these M10 bayonets using these left over grips and standard M9 bayonet components.
Does anyone know how the blade is marked?
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TX311M
Threaded Mode