I have been trying to find information on the web, as it appears that the Operating systems are very different. The MCX Spear appears to use an AK style long stroke piston design, whereas the LT appears to use an AR 18 type system. Only the LT appears on Sig's website. I prefer the AK style system and I was curious if this going to offered to the public. If so, I wonder if only with their new hyped up cartridge and not the 5.56.
MCX Spear:
https://www.youtube.com/watch?v=hO4IKxECNzI&t=489s At about 7:48 in this video
Spear LT:
https://www.youtube.com/watch?v=DYZzi7gPQ9M&t=163s At about 2:20 in this video
Thoughts or anyone with knowledge?
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