Unfortunately, I don't have a caliper. However, I removed the TRIAD and measured it again, and I can say for sure that the tines on the TRIAD are just under 2" wide.
I understand that real steel AR parts are pretty standard, however, C8 handguards that the TRIAD are designed to fit around are thinner at the tip than the fatter US-style M4 handguards. They taper more and come to a thinner end like the tip of M16 / C7 handguards. While either will physically fit into an M4 / C8 (real steel), the TRIAD will fit around one, but not around the other.
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