Out of stock
Sig Sauer SIGM400 Tread 5.56 NATO Pistol - PM400-11B-TRD
Out of stock

Sig Sauer SIGM400 Tread 5.56 NATO Pistol - PM400-11B-TRD

SKU 5165490878
Brand Sig Sauer
Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).

Product Details


  • Caliber: 5.56 NATO / .223 Rem
  • Action: Semi-Auto
  • Trigger: Single Stage, Polished
  • Handguard: 11" M-Lok Compatible, Free Floating
  • Stock: Shockwave Blade, Adjustable Pistol Brace
  • Barrel Length: 11.5"
  • Overall Length: 27"
  • Weight: 6 lbs.
  • Magazine: (1) 30 Round Magazine


The M400 TREAD pistol is an optics ready, aluminum receiver rifle caliber pistol. The TREAD pistol features an 11.5” Nitride Coated barrel with a free-floating M-LOK handguard, a single-stage polished/hard-coat trigger, ambidextrous controls, a Shockwave Blade multi-position pistol brace, and is available in 5.56 NATO.

Additional Specs:

  • Operating System: Direct Impingement
  • Receiver Finish: Hard Coat Anodized
  • Barrel Material: FNC Carbon Steel, Nitride Coated
  • Twist: 1:7
  • Thread: 1/2"-28
  • Height: 7.5"
  • Width: 2.5"


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