BudsGunShop.com - Is it MILSPEC and will it work with a SIg Sauer MC
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I'm assuming this is MILSPEC, correct? Also, will this work with the 7.62x39 Sig Sauer MCX Spear full upper?
3 Answers
Franklin Armory BSFIII Equipped M4 223 Remington/5.56 NATO Lower Receiver
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Hi Cal, you assume correctly, this is Mil-Spec and will work with the MCX Spear full upper.
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