Here's the manual for the Heckler & Koch SL8-1 .223 rifle.
Kept the original size of the exploded diagram for better resolution.

Have fun.

27003821-HK-SL8-1-Rifle-Caliber-223-5-56-MM-Operator-s-Manual.pdf
H&K SL8-1 Rifle Exploded Diagram & Parts List.pdf