The Swarowski Optik Product Guide helps you find the best solution. | all4shooters
SWAROVSKI Optik 115mm Objective Module for ATXC/STX/BTX - Newegg.com
Swarovski Optik Hunting Catalog 2018 - Scopelist Blog
Amazon.com : Swarovski Optik 2.3-18x56 P L Z8i Riflescope, Matte Black with Illuminated 4W-I Reticle, Side Parallax Focus, 30mm Tube Diameter : Sports & Outdoors