Sig Sauer SIG 556 Classic SWAT 5.56mm NATO 16" Gas Piston Rifle with Folding Adjustable Stock and Quad-Rail
This Sig Sauer SIG 556 Classic SWAT is a U.S.-made, gas-operated piston semi-auto rifle chambered in 5.56mm NATO. It is set up with a full-length top Picatinny rail, an aluminum quad-rail forend, and factory-style iron sights including a hooded flip-up front and a rotary drum/diopter rear with visible range index markings. It also includes a compact red-dot/reflex-style optic mounted on the top rail and one detachable 30-round magazine marked "5.56x45" and "Made in USA".
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This firearm is in solid shape. There are some scratches and blemishes present. The bore is clean and shiny.
What’s Included
- Compact red-dot/reflex-style optic mounted on the top rail (no legible manufacturer/model markings visible)
- 1x 30-round detachable box magazine marked "5.56x45" and "Made in USA"
The Classic SWAT configuration includes an aluminum quad-rail forend and a full-length top Picatinny rail, giving you ample rail space for mounting equipment while keeping the front end rigid and straightforward.
Its sighting setup includes a hooded flip-up front sight and a rotary drum/diopter-style rear aperture with visible range index markings (including 200). The receiver is marked "SIG 556 5.56 NATO, SIG SAUER INC., EXETER, NH, USA".
This rifle uses a gas-operated piston action and features a polymer side-folding, length-adjustable stock. It also has a pistol grip with SIG SAUER marking and a stated length of pull of 11.4–13 inches.
The included magazine is a detachable box type marked "5.56x45" and "Made in USA", and the rifle is listed with a 30+1 capacity. Barrel length is noted as 16 inches.