The Tenebraex Weapon Sight Polarizer is a great accessory for hunting as it helps reduce glare when shooting over water and snowy fields. This product allows you to see clearly through reflected glare on Bushnell DMR 3.5-21x50 optic glass. Bushnell Fits: DMR 3.5-21x50mmERS 3.5-21x50mmHDMR 3.5-21x50mmXRS 4.5-30x50mmHenzolt ZF Fits:3.5-26x563-12x564-16x56Kahles Fits: K312 3-12x50K312i 3-12x50K418 4-18x50K624 TT 6-24x56K624i 6-24x56Leupold Fits: Mark 4 ER/T 8.5-25x50Mark 4 LR/T 10x40 and 16x40Mark 4 LR/T 6.5-20x50 (30mm) M1 and 8.5-25x50Mark 4 MR/T 2.5-8x36Mark 4 PRE-2004Mark 6 3-18x44 M5B2Mark 8 1.1-8x24 CQBSS and Mark 8 3.5-25x56Nightforce Fits: NXS 3.5-15x50, 5.5-22x50, 5.5-22x56, and 8-32x56SHV 4-14x50 F1 and 4-14x56Schmidt & Bender Fits: Zenith 1.1-4x24, 1.5-6x42, and 3-12X50Klassik Hungary 1.25-4x20Klassik 1.5-6x42, 2.5-10x56, 3-12X50, and 7x50Summit 2.5-10x40 PM 10x42PM II 3-12x50 and PM II RAL8000 3-12x50 and 5-25x56 PM II ShortDot 1.5-6x20 PM II/P 12-50x56, 3-12x50, and 4-16x50PM II/LP 3-12x50, 4-16x42, 4-16x50, and 5-25x56PM II/LP/MTC 3-12x50 and 5-25x56PM II/LP/MTC/LT 3-12x50 and 5-25x56PM II PSR 5-25x56 Zeiss Conquest Fits:1.8-5.5X382-10x423.5-10x44 and 3.5-10x503-12x503-15x423-9x40 and 3-9x504.5-14x44 and 4.5-14x505-25x506.5-20x50 Tenebraex Polarizer for Ocular Scope Lens LSU000-WSP