SayUncle spotted this ad for a SIG 556 Short Barreled Rifle. What is very interesting is that the rifles being sold by Manchester Firing Line are factory manufactured, not conversions of the standard rifles.

     Classifieds Upload Nfafirearms.15364.4
    SIG 556 Short Barreled Rifle

    Although the price is steep at $3,495, Sig 556 Reviews notes that SBRs conversions are popular with the Sig crowd:

    The P556 has definitely been popular with the SBR crowd so its good too see that Sig Sauer is paying attention and grabbing some of this pie by jumping into the NFA market. There have been a few post’s on the SigArms556 forum about people with P556 SBR’s that have had customer service issues (Sig basically coming back saying theiy voided they’re warranty)

    Gun writer and SBR enthusiast Bob Boyd is currently building his own Sig SBR and modeling it after the Sig 552 Commando Carbine. The Commando is probably better classified as a PDW (Personal Defense Weapon), than a Short Barrel Rifle.

    Stgw 90 Kurz
    8.9″ barrel Swiss Army Stgw 90 kurz aka. Sig 552 Commando Carbine.

    I am looking forward to seeing Bob’s rifle when it is completed.

    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!