Sig Sauer Buckmasters 3-9x40mm BDC Rifle Scope

Sig Sauer Buckmasters 3–9x40mm BDC Rifle Scope is a variable-power riflescope designed for hunting and general-purpose rifle use, combining a versatile magnification range with a Buckmasters Bullet Drop Compensation (BDC) reticle. This scope provides straightforward elevation holdovers out to 500 yards, helping shooters engage targets at common field distances without dialing adjustments.

Built by Sig Sauer, the Buckmasters 3–9x40mm is intended for hunters and shooters who want a simple, reliable optic with a compact profile. The 3–9x magnification range supports everything from close-range shots to longer engagements across open terrain, while the 40 mm objective balances light-gathering performance with reduced overall size and weight.

Key Features

• 3–9x variable magnification for close-to-moderate range shooting

• 40 mm objective lens for a compact scope profile and usable low-light performance

• Buckmasters BDC reticle with holdover dots calibrated out to 500 yards

• Second focal plane (SFP) reticle, maintaining consistent reticle size across magnification

• 1-inch main tube compatible with standard 1″ scope rings

• 0.25 MOA adjustment increments for precise windage and elevation tuning

• Fully multi-coated optics to enhance light transmission and contrast

• Capped turrets to protect zero during field use

• Waterproof construction (IPX7 rated per supplied data)

Specifications & Construction

• Magnification: 3–9x

• Objective Diameter: 40 mm

• Reticle: Buckmasters BDC (non-illuminated)

• Focal Plane: Second focal plane

• Tube Diameter: 1 inch

• Adjustment Value: 0.25 MOA per click

• Total Elevation Travel: 60 MOA

• Elevation per Rotation: 15 MOA

• Field of View @ 100 yd: Approx. 34.10 ft (3x) to 11.35 ft (9x)

• Exit Pupil: Approx. 13.3 mm (3x) to 4.4 mm (9x)

• Housing Material: Aluminum

• Finish: Matte black

• Optical Coatings: Fully multi-coated

• Environmental Rating: Waterproof (IPX7)

The aluminum construction keeps weight manageable while providing durability for typical hunting conditions. Fully multi-coated lenses help maintain clarity in varied lighting, especially during early morning and evening hunts.

Compatibility & Intended Use

The Sig Sauer Buckmasters 3–9x40mm BDC Rifle Scope mounts using standard 1-inch scope rings and is compatible with most bolt-action and semi-automatic rifles set up for traditional optics.

Typical applications include:

• Big game and varmint hunting

• General-purpose field rifles

• Hunting scenarios requiring quick holdover references

• Pairing with external rangefinders that reference Buckmasters BDC data

Rings, lens caps, and illumination are not included, allowing shooters to configure mounting hardware to their specific rifle setup.

What’s Included

• Sig Sauer Buckmasters 3–9x40mm BDC rifle scope

• Manufacturer documentation

The Sig Sauer Buckmasters 3–9x40mm BDC Rifle Scope offers a practical balance of magnification, compact size, and easy-to-use ballistic holdovers, making it a dependable optic choice for hunters and shooters who want simplicity and reliability in the field.