Sig Sauer MCX Virtus 300 BLK 16 inch AR15 Conversion Kit

RainMan_PNW · Dec 27, 2019

Up for sale is a conversion kit for running a Sig Sauer MCX Virtus upper on your standard AR15 lower. This is one of the most versatile piston-driven setups I've ever used - I have a second one with a 6.75" barrel on my registered SBR lower. Barrel swaps take a matter of minutes using a T27 torx driver to loosen two screws. Handguard changes are even easier - push out the front take-down pin and slide the old hanguard off, then slide on the new handguard and re-engage the takedown pin. This is especially handy when switching between running suppressed and unsuppressed on a short barrel set-up.

Because I've got a separate upper already running 300 BLK, I would rather get my hands on an 11.5" Virtus upper in 5.56 instead (preferably in something other than black).

What you get (equivalent of Sig part number UAMCX-16B-300B-TAP):

Sig MCX Virtus black Upper Receiver - has had 60 rounds through it.
Sig MCX Virtus bolt carrier assembly - has had ~200 rounds through it.
Sig MCX Virtus (tapered lug) 16" 300 BLK barrel w/ tapered collar and flash hider, with matching bolt - has had ZERO rounds through it.
Sig MCX Virtus black Rifle DMR-16" handguard w/ MLOK slots and QD sling mounts integrated - unused, but did have an angled foregrip mounted and removed
Sig 1913 rail buffer tube eliminator/adapter - unused, but out of the package
Sig X-Fold stock adapter (mounts standard AR buffer tube for a folding stock) - unused in package
Sig Matchlite Duo Trigger (required for safe use according to Sig) - has had ~200 rounds through it

Brand new, these run in the ballpark of $1350 - $1500. I'm asking $1100.

Alternate options:

Buy just the barrel and bolt (essentially CALX-MCX-16B-300-TAP) for $440
Buy the barrel, bolt, and handguard for $540
Trade the barrel, bolt, and handguard straight across for a "low mileage" 11.5" tapered bolt 5.56 barrel, bolt, and handguard (in black)
Trade the entire upper assembly straight across for a "low mileage" 11.5" Virtus 5.56 complete upper (preferably in FDE, but in any color is fine). This trade would not include the trigger, stock adapter, or AR buffer adapter (but I could add those for cash).

I live outside La Center, and work near downtown Vancouver. I'm pretty flexible to meet most weekdays. I'm not really interested in shipping this given the size and the cost. If you are interested, please send me a PM.