Others may have different results but on the 250 or 500 I,ve found the Maier plastics don't fit very well...The 250's were ok but the 500 plastics were really bad...Just my experience.If you don't mind spending some time I will say I think you can get the 250 plastics to fit pretty good...That said if you can find a good set off used originals I'd go that route.Just my .02