Sig 556 rifle review

Steve Johnson
by Steve Johnson

Stevedcross @ The Gun Blogs has just posted a review on his new Sig 556 rifle

I brought home a new baby. A brand new Sig 556 rifle. Forward grip, stream light tactical light, HALO sight. What a wonderful piece of engineering! I have as of yet not done any formal accuracy testing, but during the basic sight in session, the rifle was easy to shoot, minimal recoil, very steady, and shot well.

More here.

More info on the Sig 556 can be found at the Sig Sauer website

The SIG 556 features the same high-performance two position adjustable gas piston operating rod system engineered by SIG’s sister company Swiss Arms and marries it to a trigger housing that not only cuts the rifle’s weight by a pound but is designed to accept standard AR magazines. The SIG 556 features a 16″ military grade cold hammer forged barrel, chambered in 5.56mm NATO, with a twist rate of 1 in 7″. The flash suppressor uses a standard .5 x 28 TPI thread pattern, ensuring compatibility with after-market accessories. The forearm housing the gas operating system is a vented non-slip polymer featuring the SIG TriRail design with three integrated Picatinny rails for mounting accessories. The optional flip up front combat sight is adjustable for windage and elevation.

More here.

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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  • Larry Larry on Feb 09, 2012

    I have 3 Sig pistols and that is why I bought a Sig 556 Swat. Problems, yes.
    1. Jams - answer from Sig: Did you clean your weapon? Yes, I answer. What ammo are you shooting? 5.56 I answer. How many grains? 55, I say. Well,

  • Larry Larry on Feb 09, 2012

    I got cut off before, sorry. Sig informed me that the 556 is designed for 62 grain NATO ammo, not .223 or 55 gr. 5.56. They also said that the brass will get beat up during extraction. They said not to use reloads and that the extracted brass cannot be reloaded after being shot from the 556. My Sig has a pattern 3 times larger than my old AR15. It is heavier and the trigger is heavier. It may be a great combat weapon, but for my money, I will not buy another one. I have a Rock River, a Panther and a 30 year old Colt AR15 that will shoot circles around it. Style over substance seems to be Sig's program.

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