Established in 1946, Small Parts Mfg. Co. (SPM) is an Oregon ISO 9001:2008 certified machine shop, offering a multitude of cost effective machining solutions from prototype quantities to large volume runs. This is achieved with a team of dedicated, long-term employees who are committed to providing the highest quality product and service with every order, for every customer, every day. Our Screw Machine department is one of the largest in the Pacific Northwest and our CNC machining department is state-of-the-art, with over 15 late-model machine tools, including 10 Mazaks.

SPM operates in the city of Portland, OR. Parts made with pride in the USA.

M16/M4 sight adjusters available for purchase online.