Oulun Työstökeskus Oy, OTK for short, is a Finnish fine machining company producing suppressors and other gun accessories. Along with our well-known SAK and ArmaSe suppressor ranges we make adapters, bipods, picatinny rails and cleaning rods.

Oulun Työstökeskus Oy was founded in 1982, and we employ 2-4 people, and one robot, depending on the season. We produce and sell over 15 000 suppressors yearly. Our suppressors travel from Northern Finland to all over Europe.

All our products are designed and manufactured in-house, aside from the raw aluminium material and anodizing finish, at our production facility in the old army barracks of Hiukkavaara, Oulu. All our suppressors are individually assembled and inspected to assure premium quality.

As passionate shooters and hunters ourself, we are always testing and developing new shooting accessories for real world use.