The SL8 is a semi-automatic rifle manufactured by Heckler & Koch that chambers the 5.56x45mm NATO round. It is the civilian version of the G36 assault rifle. The SL8-2 was designed as a DMR (Designated Marksman Rifle) for the German military, but was later dropped.
Tom Clancy's Rainbow Six 3: Raven ShieldEdit
The SL8 is a semi-automatic sniper rifle based on the G36K. Its 5.56mm round is extremely capable of the sniping task, however when silenced its lethality and range are drastically reduced.