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Last fall American Rifleman’s Mark Keefe was offered an early look at the new SIG Sauer M400 Tread--and he's still talking about the rifle. An already upgraded AR, the Tread offers the ability to easily upgrade its parts simply by matching it to genuine SiG parts marked with the Tread logo. For more, check out this 2019 SHOT Show primer.
Additional Reading: The Keefe Report--Treading Thoughtfully:SIG Sauer's M400 Tread
Additional Reading: The Keefe Report--Treading Thoughtfully:SIG Sauer's M400 Tread
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