These machined stainless steel legs fit the new model Sinclair Competition Shooting Rest and the Sinclair Heavy Varmint Rest. They quickly thread in to replace damaged or missing legs, or to serve as backup parts in your shooting kit. They feature a deeply scalloped, anodized aluminum cap and a knurled steel adjustment ring to give you precise tactile control over elevation adjustments. A 1/2"x20 tpi threads. Will not fit older generation Sinclair rests, or any other manufacturer's rests. Mfg: Sinclair International