Sig Sauer M400 Switchblade 5.56 NATO AR-15 Pistol - Cerakote Titanium - 11.5"

Manufactured by Sig Sauer
SKU: PM400-SDI-11B
MPN: PM400-SDI-11B
Manufactured by Sig Sauer
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Handguns are regulated by the ATF have restrictions and requirements:
 •Your Entire Order will ship only to a Federal Firearm License holder
•Carriers and shipping methods are limited
•A copy of your order/invoice as well as the current FFL License for your local dealer must be emailed to ffl@primaryarms.



The SIG Sauer M400 Switchblade 5.56 AR Pistol is ready for the range straight out of the box with unmatched flexibility and capability. It features an 11.5” stainless steel barrel with 1:7 twist and black Nitride finish. The lower receiver of the SIG M400 Switchblade pistol features ambidextrous controls, a twin locking clamp handguard, and a match-grade flatblade trigger. Attached to the carbine length buffer tube is a stabilizing brace for better accuracy and handling. The SIG M400 Switchblade Pistol is a great addition to any collection.

  • 11.5” barrel chambered in 5.56
  • 1:7 twist rate
  • Stainless steel barrel with black Nitride finish
  • Magpul BSL brace
  • 2 Stage Matchlite Duo trigger
  • Cerakote Elite receiver finish
  • Cerakote Titanium finish
  • Free-floating M-LOK handguard
  • Ambidextrous bolt catch
  • Polymer grip
  • Alloy forend
  • 30 round polymer magazine

Sig Sauer is a world-renowned firearms manufacturer with a rich history of innovation and design leadership. No other firearms manufacturer is so highly regarded and so universally respected for the quality, reliability, and safety of its products. Since 1864 they have expanded their product line to include suppressors, optics, ammo, and airguns to provide customers with a greater range of firearms and equipment.
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Barrel Length11.5
BrandSig Sauer
Caliber Gauge5.56 NATO
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

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