The SLR105 A1 is based on the SLR-105 A1] model, a semi-automatic US import version of AK-74, which is no longer in production. In the airsoft gun, this shows in realistic laser-engraved Arsenal and US importer markings, 6mm caliber marking (the real gun is 5.45mm) and a unique serial number for each gun, a rarity with Airsoft guns. The real SLR-105 A1 is semi-auto, whereas the airsoft gun is select-fire.
Classic army also produces a more pricey steel version of the product. This has same inner workings, but a completely different structure, copied mainly from high-priced Guarder products. It also differs by having real wood handguards and stock instead of black composite materials.