Crimson Trace Brushline 3-9x40 BDC

• 3-9x hunting magnification: The 3-9x range covers the most common stalking and general hunting distances, giving a wide enough view at 3x for quick target pickup and more precision at 9x for careful shot placement.
• CT Custom BDC reticle: The second-focal-plane BDC reticle uses diamond aiming references that provide multiple hold points, helping the shooter make faster elevation corrections without dialing turrets for every distance change.
• 40 mm objective with multi-coated glass: The optical system balances practical low-light brightness with a trim overall profile, while the multi-coated lenses help maintain contrast and a clear sight picture in changing field conditions.
• 1-inch aluminum tube: The 25.4 mm tube keeps weight down and mounting simple on common hunting rifle setups, while the aluminum construction supports dependable field use without making the rifle feel top-heavy.
• Waterproof, shockproof, nitrogen-purged build: This construction helps the scope stay serviceable through recoil, rain, and temperature changes, which matters on rifles that may spend long days outdoors or travel between environments.

About the Crimson Trace Brushline Series

The Crimson Trace Brushline series sits in the company’s riflescope range as a straightforward hunting scope series, distinct from the Brushline Pro models and built around practical field use rather than specialized competition features. Crimson Trace’s official catalog lists five Brushline models, with configurations centered on the magnification ranges and objective sizes most hunters actually use: 3-9x or 4-12x magnification, paired with 40 mm or 50 mm objectives.

A defining trait of the series is its consistent, uncomplicated layout. Brushline scopes use second-focal-plane reticles, 1-inch tubes, and non-illuminated reticles, which keeps the controls familiar and the overall package light and easy to mount on traditional hunting rifles. The series includes both CT Custom BDC and CT Custom BDC Rimfire reticle options, so the line covers centerfire hunting as well as rimfire applications. In practice, the Brushline approach is about giving the shooter a clear optical system, useful holdover references, and durable construction in a format that suits stalking, woodland hunting, and general-purpose rifle setups.

About the Crimson Trace Brushline 3-9x40 BDC

The Crimson Trace Brushline 3-9x40 BDC is a classic general-purpose hunting riflescope built around one of the most versatile magnification ranges in the category. 3-9x magnification makes sense on rifles used for mixed terrain: 3x remains manageable for shorter shots and moving game, while 9x gives enough image scale for more deliberate aiming at longer distances. The 40.00 mm objective keeps the scope compact and easy to mount without giving up the brightness expected for dawn and dusk hunting.

This model stands out for its CT Custom BDC reticle in the second focal plane. Because the reticle stays visually fine as magnification changes, the sight picture remains uncluttered at higher power, which is useful when aiming at smaller targets or picking a precise point through brush. Crimson Trace describes the reticle’s diamond-shaped references as providing three distinct aiming points per diamond, giving the shooter practical holdover references instead of relying only on turret dialing. The capped turrets support that role well: they protect the adjustments from accidental movement during carry, making the scope better suited to hunting rifles than to constant dialing use.

The mechanical layout also favors field practicality. 95.00 MOA of elevation and windage adjustment gives ample zeroing range, while the side parallax adjustment set for 100 YD on the CT Custom BDC version helps refine image focus and aiming precision at distance. At 315.00 mm and 400.00 g, the scope stays trim on lightweight hunting rifles. The nitrogen-filled, waterproof, shockproof construction and multi-coated lenses complete a design aimed at dependable outdoor use rather than unnecessary complexity.

About Crimson Trace

Crimson Trace was established in 1994 and built its reputation around firearm aiming and support accessories, particularly laser sights and firearm-mounted lights. Its laser-sight families include Lasergrips, Laserguard, and Rail Master, and the company also developed Instinctive Activation, a control system that uses pressure-pad placement to activate the unit with a normal shooting grip. That focus on practical firearm integration shaped the brand’s standing among shooters who want controls that work naturally under field or defensive conditions.

Beyond lasers and lights, Crimson Trace also offers riflescopes and rangefinders, extending the brand into broader shooting and hunting optics. The company operates a facility in Columbia, Missouri, United States, and its product range reflects a long emphasis on sighting systems designed for real firearm use rather than purely bench-oriented features. In riflescopes such as the Brushline series, that translates into straightforward reticle designs, durable construction, and controls intended for practical use in the field.

Main Features

• Magnification: 3.00 x - 9.00 x
• Objective lens diameter: 40.00 mm
• Main tube diameter: 25.4 mm
• Reticle position: 2. focal plane - SFP
• Turret type: Capped
• Elevation adjustment: 27.60 mrad / 95.00 MOA
• Windage adjustment: 27.60 mrad / 95.00 MOA
• Eye relief: 89.00 mm
• Field of view: 11.30 m/100m - 3.80 m/100m
• Parallax adjustment: Yes - side focus
• Parallax setting: 100 YD (CT Custom BDC)
• Illumination: No
• Length: 315.00 mm
• Weight: 400.00 g
• Housing material: aerospace aluminum
• Lens coating: Multicoated
• Nitrogen filled: Yes
• Waterproof: Yes
• Shockproof: Yes

Warranty

2 years. Crimson Trace states a two-year warranty for this riflescope configuration, covering the product for a defined period rather than an open-ended term.

In the Box

• Lens cloth
• Scope caps