50-59mm

Primary Arms PLx 4.5-36×56 FFP Riflescope – Illuminated ACSS Deka G2 Reticle

Nocpix RICO 3 PRO H50R Thermal Weapon Sight with Laser Rangefinder

Nocpix RICO 3 H50R Thermal Weapon Sight with Laser Rangefinder

Leupold BX-3 12×50 Alpine HD Binoculars

Arken Optics EP-5 Gen II 5-25×56 FFP Riflescope – Illuminated TOR Reticle

Arken Optics EP-5 Gen II 5-25×56 FFP Riflescope – Illuminated VPR Reticle

Arken Optics EPL-4 6-24×50 FFP Riflescope – Illuminated VPR Reticle

Arken Optics EPL-4 6-24×50 FFP Riflescope – Illuminated VHR Reticle

Leupold Mark 4HD 8-32×56 M5C3 FFP Riflescope – Illuminated PR3-MIL Reticle

Leupold Mark 4HD 6-24×52 M5C3 FFP Riflescope – Illuminated PR3-MIL Reticle

Leupold Mark 4HD 8-32×56 M5C3 FFP Riflescope – Illuminated PR2-MIL Reticle

Leupold Mark 4HD 8-32×56 M1C3 FFP Riflescope – Illuminated PR2-MOA Reticle

Leupold Mark 4HD 6-24×52 M5C3 FFP Riflescope – Illuminated PR2-MIL Reticle

Leupold Mark 4HD 6-24×52 M1C3 FFP Riflescope – Illuminated PR2-MOA Reticle

Leupold BX-2 12×50 Timberline HD Binoculars

Arken Optics EP-5 Gen 2 7-35X56 FFP Riflescope – Illuminated TOR Reticle