For the buffer less lowers
I SOLD this almost new Sig MCX 11,5” upper in 5.56 1/7 twist complete and ready to fire !
Got it on a trade, this upper works with any mil-spec AR 15 lowers !
Coolest thing about this set up , you don’t need a buffer tube , spring or buffer !
And it is piston operated
Asking $1,200 shipped SOLD
I SOLD this almost new Sig MCX 11,5” upper in 5.56 1/7 twist complete and ready to fire !
Got it on a trade, this upper works with any mil-spec AR 15 lowers !
Coolest thing about this set up , you don’t need a buffer tube , spring or buffer !
And it is piston operated
Asking $1,200 shipped SOLD
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