ALPHA SIGMA DEFENSE IND. INC

Oulun Työstökeskus Oy (Finland Fine Machining Ltd.,) is a Finnish company that manufactures and sells gun accessories such as silencers, adapters, bipods, picatinny rails, backfoots, Ruger shoulder stocks, screwdriver sets and cleaning rods. Oulun Työstökeskus Oy's products (or SAK products) have been patented in Finland and/or foreign countries. Founded in 1982, up to now, we can proudly present 14 different designs of silencers to support gun users.