Daewoo AR-100 5.56mm NATO Pre-Ban Semi-Auto Rifle, 18 in Barrel, South Korean Import (1988–1989), STANAG-Compatible
This Daewoo AR-100 is a pre-1989 import civilian variant of South Korea's K2 service rifle, imported by I.A. Co., Sacramento, CA. It retains pre-ban features including the bayonet lug and slotted flash suppressor, and uses a robust gas-operated piston system with an adjustable regulator. STANAG magazine compatibility and an installed B-Square clamp-on receiver-top scope rail add practical versatility to this collectible late-1980s rifle.
Condition
Overall Condition: Fair condition, showing extensive signs of prior use and handling.
Bore Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
Specific Condition Notes: The firearm remains structurally solid. The left side of the rifle shows heavy marring and blemishes. There is widespread pitting and rust, along with scratches to the finish.
What’s Included
- B-Square receiver-top clamp-on scope rail (installed)
- Green web sling (installed)
- Pull-through cleaning kit in tubular container with cap (stored in pistol grip)
- 2x 20-round aluminum STANAG magazines; floorplates marked "Colt AR-15" and "Universal Inds. Div., Simmons Precision Products, Inc., West Haven, Conn., U.S.A."
The AR-100 pairs a proven gas-operated piston system with an adjustable, multi-position gas regulator, offering reliable function across varying conditions. Its receiver-top gas cylinder/piston sits above the barrel, mirroring the K2 service rifle lineage while maintaining civilian semi-auto configuration.
This pre-ban configuration retains features restricted after the 1989 import changes, including a pinned front sight base with protective ears, a bayonet lug, and a slotted flash suppressor. These details, along with the I.A. Co. Sacramento import mark, place the rifle clearly in the late-1980s era.
Controls and ergonomics reflect the K2 design: a right-side charging handle, a forward-assist plunger, and a manual safety selector. STANAG magazine compatibility ensures broad magazine availability, and this example includes two 20-round aluminum magazines with noted Colt and Universal Inds. markings.
Furniture is durable black polymer, including a fixed stock with a 13.5-inch length of pull, a checkered pistol grip, and a ribbed handguard with longitudinal vents and heat-shield cutouts. The installed B-Square clamp-on scope rail provides a receiver-top mounting option without altering the rifle.




