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.

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.

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.