Sig 556 Pistol: P556

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.

 Upfiles Catalog Product 556P-Detail-R3B

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

Founder and Dictator-In-Chief of TFB. A passionate gun owner, a shooting enthusiast and totally tacti-uncool. Favorite first date location: any gun range. Steve can be contacted here.


  • Now there is something to SBR.

  • Michael Nix

    Why in the world would they put the charging handle on the right side??

    In order to maintain the grip on the handle and finger on/near the trigger, the shooter must reach over the top with the left hand to access the charging handle. The Robinson Arms XCR is an ergonomically superior platform with the side charging handle on the left side as do the FAL and MP5 and other HK platforms.

  • I purchased both the 556 swat pistol and the 556 swat carbine. Both perform very well and are accurate to 200 yards. i can recommend both and I believe are less likely to jam if dirty etc than the AR-15.

  • loren huckstadt

    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

    @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.