Sig Sauer SIG SCM 5.56 NATO Semi-Auto Rifle, 16" Heavy Crowned Barrel, Nitron Finish, Flip-Up Sights, SIG556 Series
This U.S.-made SIG Sauer SIG SCM is a SIG556-series, ban-compliant configuration built in Exeter, NH. It features a 16" heavy, crowned, non-threaded barrel, a fixed polymer stock, and a full-length M1913 Picatinny top rail. The rifle uses a long-stroke gas piston with a two-position adjustable gas regulator and is compatible with standard AR-15/M16 (STANAG) magazines. It includes two 10-round magazines and ships in a Pelican Storm iM3200 hard case.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
Specific Condition Notes: There are minor scratches and blemishes present. The bore is clean and shiny.
What’s Included
- Sig Sauer SIG SCM 5.56 NATO semi-automatic rifle
- 2 x 10-round AR-15/M16 pattern magazines (1 polymer Amend2, 1 metal USGI-style)
- Pelican Storm iM3200 long rifle hard case
Built in Exeter, New Hampshire, this SIG SCM pairs a stamped steel upper with a forged aluminum lower, both finished in Nitron. The receiver is rollmarked "SIG SCM, 5.56 NATO, SIG SAUER, EXETER, NH" and carries a full-length M1913 Picatinny top rail for mounting. The compliant configuration includes a fixed polymer stock with a rear sling loop and a 16" heavy-profile barrel with a crowned, non-threaded muzzle.
The rifle operates via a long-stroke gas piston with a rotating bolt and a two-position adjustable gas regulator. A right-side reciprocating charging handle provides direct manipulation, and a manual safety selector controls the fire mechanism.
Factory sights include a folding front sight on the gas block and a flip-up rear aperture. The classic-style, vented polymer handguard has molded ribs and oval cooling slots, and the ribbed polymer pistol grip offers a secure hold. Length of pull is 14.0 inches.
Magazine compatibility is AR-15/M16 (STANAG), with a stated capacity of 10+1. Two 10-round magazines are included: one polymer Amend2 and one metal USGI-style, along with a Pelican Storm iM3200 hard case for secure transport and storage.