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mcx virtus

The SIG MCX is a family of firearms designed and manufactured by SIG Sauer, produced in both selective fire and semi-automatic only models, and features a short-stroke gas piston system, which is inherited from the earlier SIG MPX submachine gun. The MCX is available in rifle, carbine, short-barreled rifle, and pistol configurations (the latter configuration generally conforming to the definition of a compact carbine but for taking a pistol brace rather than a buttstock).

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Recent contents
  1. J

    Sig MCX Virtus

      1. Want to Buy
    • Kent
    • Washington
    Hello everybody! New member here reaching out to see if anyone has an 11.5” Virtus chambered in 5.56 for sale, preferably gray. I’m about 20 mins outside of Seattle, WA but I’m willing to travel a reasonable distance depending on the offer. Will also consider a standalone lower receiver, just...
  2. Justin1985

    Sig Sauer MCX Virtus

      1. Want to Buy
    • Woodland
    • Washington
    Hey all, Looking to get my hands on a Sig MCX Virtus, preferably in the pistol configuration and preferably in the grey color but both of those could possibly be up for talks for the right deal. Also, prefer .556 but once again, might be open to a .300 BO in the right scenario. Thanks in advance!
  3. venturinout

    MCX Virtus 6.75" Caliber Exchange Kit - 300BLK

      1. For Sale
    • $499
    • Chewelah
    • Washington
    This is a brand new Sig Sauer MCX Conversion kit to convert your MCX to 300BLK with an 6.75" barrel. Bolts are not included. APP MCX Conversion kits have chrome-lined barrels which differentiate themselves from the commercial variants. If you are interested txt me @(509)680-1319
  4. PocketSand

    Lightly Used Sig Sauer MCX Virtus 300blk 9" Pistol

      1. For Sale
      2. For Trade
    • $2000
    • Albany
    • Oregon
    Bought this a few months ago and it's just been sitting in my safe. Barely used and in great shape. Just selling it to pay off some bucket list purchases I made in case M114 passes. Includes one 30rd mag. Buyer to pay transfer fees. Meet at an FFL near the Albany/Corvallis area. Cash, venmo, or...
  5. S

    Sig MCX Virtus w/ 6.75 + 10.5 300 Blk

      1. For Sale
    • $2800
    • Bellevue
    • Washington
    WTS: Sig MCX Virtus w/ 6.75 + 10.5 300 Blk Caliber: 300blk Color: Grey Handguard: 12" SD Handguard Price: $2800 Notes: 6.75 Barrel is brand new and unfired. The 10.5 was cut down from a 16 and rethreaded to 1/2x28 and was run via a trash panda, less than 50rds down. *Transfer to be done at...
  6. DIYshooter

    Sig Sauer MCX Virtus 11.5 Pistol

      1. For Sale
    • $3200
    • Clackamas
    • Oregon
    I have a very tightly used MCX Virtus Pistol. In Virtus Grey. 11.5” barrel, chambered in 5.56. I took it out shooting a couple times and put a couple hundred rounds through it but it’s been sitting in my safe and I’m making room for other projects I want to purchase before whatever the ballet...
  7. connor882

    Mcx virtus gassing/forward assist

    I have 11.5 vitrus with SiCo chimera 300. Gassing is not great. Thinking of getting the gas port forward assist, does anyone know if this will fit? Also what have people done to help with blowback besides charging handles?
  8. M

    MCX Virtus 11.5" barrel - 5.56 Caliber Exchange Kit

      1. For Sale
    • $575
    • Bellevue
    • Washington
    BNIB. Never installed. Sig part number WCALX-MCX-11B-556-TAP https://www.sigsauer.com/mcx-virtus-11-5-caliber-exchange-kit-5-56.html $620 shipped to your door or pickup around Bellevue WA.
  9. RainMan_PNW

    MCX Virtus DMR 16” SD FDE Handguard

      1. For Sale
    • $220
    • La Center
    • Washington
    Bought this from Sig a couple years ago to use on a 11.5" Virtus with a suppressor and have since sold off my FDE Virtus. It has had a SI hand stop attached to the bottom but only lightly tightened. It's been installed/removed from the upper a dozen or so times but otherwise never left the...
  10. RainMan_PNW

    Rare MCX Virtus Stripped upper receiver Coyote PVD

      1. For Sale
    • $460
    • La Center
    • Washington
    This is exactly as I received it brand new from Sig (except a minor nick by the takedown pin lug - see pictures) when I ordered a stripped FDE receiver from them in August 2020. It is not cerakote FDE like the MCX that I actually had, but rather something closer to coyote tan that appears to be...
  11. FlatDullEarth

    Sig Sauer MCX Virtus 11.5” 556 Upper

      1. For Sale
      2. For Trade
    • $2000
    • Lake Oswego
    • Oregon
    Upper just got back from sig with a clean bill of health. Can ship, looking to get $2000 for it. This is one of my favorite uppers and I’ll be sad to see it go but I have other things that need my money. I have a lower for it as well
  12. RainMan_PNW

    Sig MCX Virtus FDE 11.5” 556

      1. For Sale
    • $2500
    • La Center
    • Washington
    Title pretty much says it all. Sig MCX Virtus FDE pistol 556 barrel, 11.5" long, with original taper-lock flash hider. Bolt carrier has been upgraded with a POF roller cam pin (original also included) Charging handle is a Radian Raptor LT (FDE) Brace is a new Sig Pivot Contour Brace - same brace...
  13. O

    MCX Stock Adapter

      1. For Sale
      2. For Trade
    • $90
    • Portland
    • Oregon
    Moving out some of my MCX Virtus parts: Virtus 9" 300 BLK barrel kit (bolt + taper adapter) with flash hider. I have shot less than 50 rounds down the pipe. Barrel had been babied but dry fired a bunch. $600 (BARREL SOLD) (HANGUARD SOLD) MCX stock adapter to go on an AR lower. Got some light...
  14. RainMan_PNW

    Sig MCX Virtus FDE 11.5” 556 w/ JMac Tailhook Brace

      1. For Sale
    • $2900
    • La Center
    • Washington
    Title pretty much says it all. Sig MCX Virtus FDE 556 barrel, 11.5” long, with original taper-lock flash hider. Bolt carrier has been upgraded with a POF roller cam pin (original also included) Charging handle is a Radian Raptor LT (FDE) Brace is a new J-Mac Customs “tanodize” AB-8R with 1913...
  15. T

    Sig Sauer MCX Virtus 11.5” Pistol Stealth Grey

      1. For Sale
    • $2500
    • Kirkland
    • Washington
    Sig MCX Virtus Pistol with 11.5” barrel. Lightly used (approximately 300rds down the pipe) Brace has been swapped with the SIG collapsing brace. Includes PMM Battery control device as well. PISTOL WILL BE SOLD NAKED. No optic, magnifier, magazine, light or DBAL are included, they are not for...
  16. TristanJ1221

    Sig Sauer MCX virtus with LPVO

      1. For Sale
    • $2800
    • Troutdale
    • Oregon
    FOR SALE:. SIG MCX virtus with SIG Tango MSR scope. Only shot it a couple times. Comes with LPVO, forgrip, and new safety switch (more crisp) (Pictures shows 300 blackout magazine but it shoots 556/223) $2500 W/O scope
  17. RainMan_PNW

    Sig MCX lower receiver only

      1. For Sale
    • $800
    • La Center
    • Washington
    SOLD Cleaning things out and realized that three MCX’s was a bit much. I never have time for all of them… This started life as a pistol - in WA it will transfer as an “other/receiver” at most places I go to do transfers. In OR, I’m not entirely sure, but I imagine it will still just simply be...
  18. RainMan_PNW

    Sig MCX Virtus upper - 300BLK 9” - rare factory Coyote Tan

      1. For Sale
    • $1800
    • La Center
    • Washington
    This one is unique - I’ve never seen an MCX upper receiver before or since that was like this one. I ordered a stripped FDE upper from Sig and they sent me this, which is coyote tan and PVD finished instead of the FDE Cerakote that is/was (since they have discontinued it) standard. The inside of...
  19. Valkyrie

    Sig 11.5in MCX Virtus for trade (new items wanted)

      1. For Trade
    • Kenmore
    • Washington
    I am looking to trade my new 11.5 inch Sig MCX Virtus in 5.56. Items I want in order of desirability. HK SP5k PDW + cash on my end MCX Virtus 14.5 MDRX black in either 308 or 5.56 B&T Apc 9 pro + cash or accessories FN scar 17 nrch black + cash on my end MCX rattler in 300blk
  20. jason m

    Sig sauer mcx virtus 2089 with savecart5

    https://www.bereli.com/shooting/sig-sauer-mcx-virtus-patrol-223-rem-5-56-nato-16-30-1-gray-5-position-folding-stock/
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