Looking at getting into 300blk soon. Home defense/ minor hunting use etc. can’t really come to a decision between the SR30 upper or a mcx with the 6.75” barrel. Or honestly even possibly a rattler. I like the sigs on paper, but I’m wanting to know how they handle being suppressed as far as parts wearing out etc. the kac, well it’s a kac and I’ve never had a issue with anything from them.


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