Post front and two-leaf peep rear sights, with a bayonet lug on the left side of the heat shield, Sterling nomenclature on the magazine well, and the York Arms address and serial number on the left side of the receiver. An underfolding buttstock is installed, with an "A/R/S" marked selector; the item runs full auto in both the "A" and "R" positions. With an extra magazine and an extra bolt.

Excellent, with 98% of the original matte black finish, showing some minor wear and handling marks overall. Mechanically excellent. NOTE: This weapon is a National Firearms Act (NFA), fully transferable Class 3, which is registered with the Bureau of Alcohol, Tobacco, Firearms and Explosives, (BATFE) under the provisions of 18 U.S.C. Chapter 44 and 27 CFR part 478.