Firefield RapidStrike 5-20x50 Rifle Scope. Designed for modern hunters and competition shooters these riflescopes ensure durability with their waterproof and dustproof aluminum housing while offering shooting versatility with their high recoil resistance capable of handling rifles chambered in everything from low caliber .22lrs to the powerful .338 WinMag. The new RapidStrikes will be offered in 3-12x 4-16x and 5-20x models with all the perks and distinguishing features which made the RapidStrike 1-6x the high-speed LPVO it is. With their longer ranges the new Firefield RapidStrikes are ideal for engaging hogs varmints or paper targets at the range. Specifications for Firefield FF13074 RapidStrike 5-20x50 Rifle Scope 30mm Tube Second Focal Plane: Manufacturer: Firefield Objective Lens Diameter: 50 mm Magnification: 5 - 20 x Tube Diameter: 30 mm Gun Type: Rifle Package Contents: Firefield FF13074 RapidStrike 5-20x50 Rifle Scope 30mm Tube Second Focal Plane Firefield FF13074: RapidStrike 5-20x50 Rifle Scope