Sig 556 Pistol: P556

Steve Johnson
by Steve Johnson

Sig are offering the Sig 556 rifle in a pistol configuration called the P556. It has proved very popular at SHOT Show and looks like a really fun gun!

Sig P556

Apart from the 10″ barrel and lack of a stock, it has all the same features of the SIG 556 rifle: Flash suppressor, picatinny rails, two stage trigger, weather resistant Nitron finish. It also comes with a Sig branded mini red dot sight.


Caliber: 5.56mm NATO
Overall Length: 21.5”
Barrel Length: 10”
Rifling: 1 in 7”
Weight (w/o Magazine): 6 lbs 7 oz
Magazine: 30 Round STANAH (AR-15)

The MSRP is $1875.

It also comes in a SWAT variant which has a alloy quad rail in place of the standard handguard. No word on pricing for this model.

P556 SWAT model
Steve Johnson
Steve Johnson

I founded TFB in 2007 and over 10 years worked tirelessly, with the help of my team, to build it up into the largest gun blog online. I retired as Editor in Chief in 2017. During my decade at TFB I was fortunate to work with the most amazing talented writers and genuinely good people!

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2 of 5 comments
  • Loren huckstadt Loren huckstadt on Nov 01, 2009

    I have both weapons too and find they are superior to my AR-15s. The 556 pistol definitely prefers the 55gr TAP round while the 75 gr TAP is great in the carbine.

  • John John on Sep 16, 2011

    @Michael Nix -

    A very small inconvenience and hardly worth mentioning. Also, none of the manufacturers you mentioned make a gun as good as a Sig.