Hooded blade front and tangent rear sights, with a rough cast and machined receiver marked "K43" and "ac/44" on the left side. The bolt carrier is fitted with a reinforcing web, hollow cocking handle and a right side catch, and the right side of the receiver is devoid of a scope mounting rail. Fitted with a replacement smooth pistol grip stock with a resin upper handguard and a cupped steel trapdoor buttplate.

Blade front and tangent rear sights, with "Mod. 98/byf 45" on the receiver ring, "byf" on the stamped trigger guard and floor plate, and a laminated pistol grip stock with faint Waffenamt stamps and a cupped buttplate.