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The SIG MCX is a carbine series designed and manufactured by SIG Sauer, featuring a short-stroke gas piston system, carried over from the SIG MPX submachine gun.

Reception

The weapon has been nicknamed the "Black Mamba", a reference to a competing rifle, the AAC Honey Badger PDW. The MCX has received praise from firearms journalists, including Mike Searson of "Ammoland" who called it "the most modular black rifle ever designed" and said it may "unseat the venerable AR-15 as the most user-friendly rifle platform developed thus far". Mike Leghrn, who blogs at "TheTruthAboutGuns.com", said it is "really just a pleasure to fire". The MCX is noted for its "modularity, firing speed, controllability, and its ease of use." The line has been such a success that it helped revive the Sig Sauer company's business.

Design

The SIG MCX series features a short-stroke gas piston system to reduce recoil and improve the reliability of the weapon. The MCX features a system that allows for conversion between 5.56×45mm NATO, .300 AAC Blackout and 7.62×39mm ammunition, using standard 5.56×45mm STANAG magazines for 5.56×45mm NATO and .300 AAC Blackout, and specially designed STANAG-compatible magazines for 7.62×39mm.

Variants

• MCX Carbine: Carbine, with 16 inch barrel. Available with a safe/semi-automatic trigger group for U.S. civilian sales, or safe/semi-automatic/fully-automatic trigger group for law enforcement and military sales.
• MCX SBR: Short-barreled rifle, with 9 inch barrel. Available with a safe/semi-automatic trigger group for U.S. civilian sales, or safe/semi-automatic/fully-automatic trigger group for law enforcement and military sales.
• MCX Pistol w/ SBX: Semi-automatic pistol, with 9 inch barrel, SIG SBX stabilizing brace and safe/semi-automatic trigger group.

Historical usage

A .223 MCX and a 9mm Glock 17, both legally purchased about a week earlier, were used by Omar Mateen to kill 49 people and injure 53 during the 2016 Orlando nightclub shooting, the worst mass shooting in modern U.S. history. In response, the California legislature passed series of gun control measures intended to limit access to similar weapons.

References

1. http://www.newsweek.com/sig-sauer-orlando-shooting-omar-mateen-assault-rifles-474972
2. "Orlando Mass Shooting Math Doesn't Add Up". Snopes. June 15, 2016. Retrieved June 24, 2016.
3. http://www.newsweek.com/sig-sauer-orlando-shooting-omar-mateen-assault-rifles-474972
4. "SIG MCX on SIG Evolution". Retrieved June 26, 2016.
5. "Gun Review: SIG SAUER MCX". The Truth About Guns. October 17, 2015. Retrieved June 23, 2016.
6. "SIG MCX Brochure" (PDF). SIG Evolution. Retrieved June 23, 2016.
7. Cite error: The named reference WP was invoked but never defined (see the help page).
8. http://www.slate.com/articles/news_and_politics/crime/2016/06/the_sig_sauer_mcx_used_in_orlando_is_a_modern_sporting_rifle_not_an_assault.html
9. http://www.military.com/daily-news/2016/06/24/coast-guard-exchanges-halt-sales-assault-style-guns.html
10. http://wwlp.com/2016/06/21/a-closer-look-at-the-orlando-shooters-weapon/
11. http://ir-ia.com/news/sig-sauer-mcx-the-weapon-that-caused-100-causalities-in-orlando-massacre/
12. http://www.usatoday.com/story/news/2016/06/14/guns-used-kill-49-orlando-high-capacity-common-weapons/85887260/
13. http://www.mercurynews.com/california/ci_30014136/gun-control-california-assembly-and-senate-committees-meet
14. http://www.mercurynews.com/california/ci_30075558/california-gun-control-legislature-poised-pass-raft-new?source=pkg

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