 The standard Grizzly models had a 5.5" slide, most often seen fitted with a 6.5" barrel which extends one inch beyond the slide, and less commonly with a 5.5" barrel in combination with a factory fitted bushing style recoil compensator.Special models with 8" and 10" barrels for hunting and silhouette competition were also produced (in small quantities).A Grizzly caliber conversion kit typically included a barrel, a magazine, an ejector, an extractor, a barrel bushing, and a recoil spring.