The Burris Fullfield 3-12x42mm (Model BO201533) is a versatile, variable-power hunting riflescope engineered for balanced optical performance in medium-to-long range shooting environments. Featuring a 4x zoom system, this optic combines a 3x to 12x magnification range with a 42 mm objective lens and a 1-inch single-piece main tube. It is built with a Second Focal Plane (SFP) Illuminated Wind-Ret reticle and Advanced Exposed (AE) turrets, offering hunters and target shooters a rugged platform capable of handling heavy recoil while providing precise elevation and windage adjustments.

Key Features

• Wind-Ret Illuminated Reticle: Equipped with red LED illumination powered by a single CR2032 battery, featuring 1 MOA hash marks to assist with crosswind hold-overs.
• Advanced Exposed Turrets: Features metal-on-metal components, zero-stop functionality, and 1/4 MOA click adjustments.
• Optical Performance: Multi-coated lenses maximize light transmission and reduce glare, providing a linear field of view from 36 to 9.25 feet at 100 yards.
• Rugged Construction: Formed from a single-piece anodised aluminum body weighing 15.3 oz and measuring 11.1 inches in length, utilizing a double-spring turret system to withstand heavy recoil.
• Parallax Adjustment: Features a side focus parallax adjustment dial operating from 25 yards to infinity.

Product Specifications

• Magnification: 3x to 12x
• Objective Lens Diameter: 42 mm
• Ocular Diameter: 41 mm
• Main Tube Diameter: 1-inch (25.4 mm) single-piece tube
• Focal Plane: Rear / Second Focal Plane (SFP)
• Reticle: Illuminated Wind-Ret (Red LED, 1x CR2032 battery)
• Total Elevation & Windage Travel: 72 MOA
• Click Value: 1/4 MOA
• Eye Relief: 3.9 to 4.2 inches
• Exit Pupil: 10.5 mm to 3.5 mm
• Parallax Adjustment: Side focus (25 yards to infinity)
• Length: 11.1 inches (approx. 282 mm)
• Weight: 15.3 oz (approx. 433.7 grams)

Who is the Fullfield 3-12x42mm Wind Ret Illum Spa Ksh-Ex for?

• Medium-to-long range varmint hunters — require the flexible 3x to 12x magnification range and detailed Wind-Ret reticle of this Burris riflescope to target small pests at variable distances, utilizing the 72 MOA total travel to compensate for bullet drop over long ranges.
• Western open-country big game hunters — benefit from the 15.3 oz lightweight, 1-inch single-piece tube design of this variable-power hunting riflescope, which keeps mobile setups light when tracking deer, pigs, or goats across rugged terrain while the 42 mm objective lens maintains optical clarity in low-light conditions.

Less suitable for: close-range shooting environments requiring target acquisition at distances under 25 yards, where a dedicated rimfire or airgun scope with an ultra-close focus parallax system is required.