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sig mcx

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 (generally considered as a compact carbine without buttstock) configurations.

View More On Wikipedia.org
Recent contents
  1. Screach

    Sig MCX BNIB Spear LT 5.56 and Virtus 5.56 Barrel

      1. For Sale
    • $500
    • Beaverton
    • Oregon
    Hey all, up for sale today I have two MCX barrels. First, I have a used 16” Virtus Barrel purchased for my Spear LT. The barrel has approx 150rds down the pipe and is in excellent condition. Muzzle device has been removed and a taper adapter will be included. Virtus 16” 5.56 Barrel Asking $500...
  2. Screach

    BNIB Sig MCX Spear LT 16in Complete Upper

      1. For Sale
    • $1400
    • Beaverton
    • Oregon
    Hey all, looking to sell my Spear LT 16” upper in 5.56. It started life as a full size LE/Mil 16” rifle. Barrel has been replaced with a brand new unfired 16” 5.56 barrel. Upper and bolt components have seen 50 rds, barrel is unfired. The LE/Mil versions come with iron sights and a reviewer...
  3. Chris12612

    Sig MCX Spear LT 11.5 5.56

      1. For Sale
    • $3400
    • Sandy
    • Oregon
    Sig MCX Spear LT 11.5" 5.56 200 rounds fired Surefire closed tine Geissele charging handle Eotech Exps3-0 Eotech M33 magnifier Sig folding stock adapter Sba4 brace Surefire light not included. $3400
  4. K

    Sig Mcx Mpx collapsible stock

      1. For Sale
    • $140
    • Bellevue
    • Washington
    Hi all, Selling my Sig Collapsible stock. It was installed to try but ultimately I liked a folding style better so it has been sitting in the parts bin. As new, and hasn't seen any usage. May be interested in trades. Looking 556/223 M855 or M193 or range steel, 9mm range and 7.62 x 39 steel.
  5. B

    Sig MCX Regulator

    https://www.sigsauer.com/mcx-r-regulator.html Looks like SIG is entering the ranch rifle market. It's available in 5.56 or 7.62x39, and is compatible with Mossberg 500/590 stocks. Overall I like the concept, though I wish they would have gone with a side-charging design and different handguard...
  6. Jimmyod1

    Sig MCX Virtus PCP

      1. For Sale
    • $150
    • Portland
    • Oregon
    Overall good shape and works great, thought he tank is empty. Includes a mag and a good amount of pellets.
  7. AlaskinAssasin

    Sig mcx virtus gen 2 with 5 color battle worn cerakote

      1. For Sale
      2. For Trade
    • $2200
    • Stayton
    • Oregon
    This is a Sig mcx virtus gen 2 with 5 color battle worn cerakote. About 200 rounds fired. The cerakote was $500. Comes with 1 mag. Willing to trade for high end optics and firearms.
  8. S

    Aero AR15 Lower (Sig MCX upper ready)

      1. For Sale
    • $350
    • Portland
    • Oregon
    Aero lower with a SIG MCX 2-stage trigger and SIG M4 adapter, enabling Picatinny rail folding stock compatibility. All other parts are standard Aero components. I built it for an MCX upper that I already sold. Selling for $350, cash only, no trades. FFL transfer at Money Market in SE PDX or J&B...
  9. T

    Sig MCX Rattler 300 AAC Blackout Pistol/Accessories/Ammo

      1. For Sale
    • $2000
    • HILLSBORO
    • Oregon
    Sig MCX Rattler 300 AAC Blackout pistol for sale. Excellent condition. Only 200 rounds down the pipe. - Sig MCX Pistol Original Price: $ 2,500 - SB Tactical MPX Folding Pistol Brace Original Price: $200 - Magpul MBUS Pro Front/Rear Iron Sights Original Price: $210 - Radian Raptor Charging Handle...
  10. C

    *price drop* WTS Sig MCX 16" 5.56 Rifle

      1. For Sale
    • $1550
    • Portland
    • Oregon
    Like new Sig MCX 5.56 16" with factory folding stock. Has about 50 rounds fired and has been in a safe. Comes with BUIS but no mag, optic, sling or flashlight. $1700 face to face in Portland area, buyer pays transfer fee. Price dropped to $1550 firm. I prefer cash but open to partial trades on...
  11. Chandlerseattle

    Sig MCX Rattler 300blk 5.5" version

      1. For Sale
    • $1900
    • Eagle
    • Idaho
    Listing my Rattler as I am trying to scrounge funds for something else. Sig MCX Rattler Original 5.5" barrel 300blk Less than 200 rounds fired (all suppressed 220gr) Q Cherry Bomb muzzle device Magpul grip $1900 for the pistol shipped as is Optic/mount and the surefire light are not...
  12. T

    Sig MCX Virtus .300BO

      1. For Sale
    • $1750
    • Meridian
    • Idaho
    Up for sale is a beautiful FDE Sig MCX Virtus in .300 Blackout 9 inch barrel Q cherry bomb muzzle brake Collapsible brace B5 pistol grip FDE Magpul MOE 30rd magazine Optic, mount and back up sights not included Priced to sell at $1750 shipped. Private to FFL Full disclosure: lower is rifle. Will...
  13. L

    Sold! Sig MCX Virtus 11.5 price lowered

      1. For Sale
    • $1800
    • Rathdrum
    • Idaho
    I am in north idaho but travel to Oregon City area often so either place works. Mcx virtus 11.5 inch barrel in 5.56 Have put 1 or 2 mags through it to make sure everything was working and it's been sitting in my safe since. 1900 by itself. Will come with 1 mag, collapsible brace and the folding...
  14. PocketSand

    SIG Sauer MCX Telescoping Folding Stock - Like New

      1. For Sale
    • $150
    • Albany
    • Oregon
    Pretty much new in box. Purchased this a few months back but went with something else and never even installed it. Comes with T27 bit. Willing to ship or meet in Albany. Cash, Venmo, or PayPal F&F. Not looking for trades at the moment.
  15. OrygunARMS

    SiG MCX Complete Upper W/ full AR15 conversion kit, LPK, & Folding Stock

      1. For Sale
      2. For Trade
    • $1000
    • Beaverton
    • Oregon
    This has been a great setup. But, Bidenomics have hit. So, here it is. I ran this on an 80% lower / converted, with the parts included. Will ship for $10 16" sig sauer Legacy (gen1 of the Virtus 1lb lighter different handgaurds) Upper has between 1k - 1,500 rounds fired. Overall conditions...
  16. K

    New Sig Mcx Virtus 12" Handguard

      1. For Sale
      2. For Trade
    • $120
    • Bellevue
    • Washington
    Selling my new 12" carbine length Mcx handguard in battle Grey. Decided to keep the full length hg on the Virtus so parting with this. Brand new besides mounting it to see how it felt. $120 obo
  17. tric1911

    SIG MCX SPEAR 16” 7.62x51

      1. For Sale
    • $5000
    • Corvallis
    • Oregon
    I have a like new Sig mcx spear in 7.62x51 with a 16” barrel. Rifle only has 40 rounds through it. Eotech XPS3-2 with G45 (5x) magnifier combo included. Literally the perfect setup for this battle rifle. Also will come with 3 pmags. It pains me to sell such a nice rifle, I worked hard to pay...
  18. liamstriding

    SIG MCX Gen1 / AR Grip

      1. For Sale
    • $30
    • Sandy
    • Oregon
    Used grip from Gen1 MCX legacy. Works on all AR-type lowers. No trades, please. I use Venmo, Applepay or PayPal F&F. Price includes shipping. Cheers!
  19. L

    Sig mcx virtus 556 (2250 rifle only, 3k with goodies)

      1. For Sale
    • $3000
    • Post Falls
    • Idaho
    Mcx virtus in 556 w/ 11.5 inch barrel, trijicon mro HD (able to switch betweem dot/eotech type reticle), magpul qd sling, magpul angled grip, rechargeable streamlight (pressure switch included), magpul pro buis, folder/collapsible included... Put 20 or so rounds through it after buying...
  20. Br3ndini

    Sig MCX Virtus TACOPS 300 Blackout Pistol-- SOLD

      1. For Sale
    • $2500
    • Canby
    • Oregon
    SOLD... SOLD... SOLD Sig MCX Virtus TACOPS 300 Blackout Comes stock with 6.75" barrel length w/ faux suppressor attached. I'm selling most of my gun collection because I never have time or find time to enjoy them properly. Not too interested in trades as I plan to use the funds towards...
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