Gottfried Prechtl (www.golmatic.de) makes M70 style safeties, which can also be had in 2 position only if wanted, as does a Norwegian maker: Ragnar Hansen (www.magnumhansen.com). Ritterbursch (www.jagdgewehre.com) also makes M70 style safeties, including ones with the lever on the left side. Then there is as mentioned Recknagel and some others already mentioned.

Ritterbursch's lefthand version (for righthand shooters)