What springs and retainers are used for the H series Pro cams? You have to use a B Pro XP Spring (311-05-7350) with an H Base Kit (312-05-0015) and Pro Retainers (308-05-0300)
![Group A Brands little.png]](https://knowledge.skunk2.com/hs-fs/hubfs/Group%20A%20Brands%20little.png?height=40&name=Group%20A%20Brands%20little.png){kind=small}