Manufactured in 1981, with "IB" date code on the left of the magazine well. Features hooded blade front and four position drum rear sight, birdcage flash hider, clamp-on shell deflector fitted to the receiver, detachable folding metal bipod, "N-IB" bolt, "IB" bolt carrier, and "0/1" marked fire selector. Fitted with a textured polymer triangular handguard, pistol grip, and buttstock. Includes a shipping box, five extra magazines, and a tool.

Excellent retaining 98% original black finish with a few minor nicks at the ejection port but otherwise limited handling evidence. The furniture is also excellent with some minor handling wear on the forend. Mechanically excellent.