Vortex Optics Sure Fit Riflescope Cover Fits most riflescopes measuring 14  16 inches in length with a bell diameter over 2.25 inches. Protect your scope from the elements with a durable water and weatherproof SURE FIT cover. This stretch cover is easy to put on and keeps your scope clean from dirt, dust, and debris. Choose size X-Large for these riflescopes: RZR-AMG-1, RZR-AMG-2, RZR-42704, RZR-42705, RZR-42706, RZR-52005, RZR-52006, TCS-1501, TCS-1503, PST-5251, PST-5255, PST-5258, VHS-4310, VHS-4325, VHS-4315-LR, CF2-31045, CF2-31047