An H&K 91 with the rather uncommon Namibian furniture. The handguard pretty much looks like a standard wide handguard aside from the ventilation slots. The stock is unique in that it mimics the FAL’s stock. It’s substantially heavier than the regular G3 fixed stock. One other thing to note is the color. Namibian furniture has a very distinct faded molted green pattern, but it was never applied to the pistol grip.
I lucked out on my SAR 8 cause the owner had Namibian furniture installed but didn’t know what it was. Depending on the condition of the furniture, a complete set would be around $300+.