Crimson Trace Hardline 4-16x42mm Rifle Scope, 30mm Tube, BDC 223/5.56 Reticle, Black Anodized

The Crimson Trace Hardline 4-16x42mm rifle scope is built for shooters who demand a solid, dependable optic without unnecessary frills. This 30mm-tube scope pairs a versatile 4-16x magnification range with a 42mm objective lens, making it equally at home on the bench, at the range, or in the field. The BDC 223/5.56 reticle is purpose-built for .223 and 5.56 NATO platforms, giving you ballistic compensation dialed in for one of the most common tactical and hunting calibers. At 20 ounces, it won't burden your rifle, and the 3.7-inch eye relief keeps you comfortable behind the gun.

Crimson Trace engineered the Hardline around a rigid 30mm chassis—the thicker tube provides superior strength and a larger adjustment range compared to 1-inch designs. The black anodized finish is tough and subdued, designed to handle real use without looking pretty for the camera. Second focal plane (SFP) optics place the reticle in the second focal plane, meaning the reticle size stays constant throughout the magnification range, which many shooters prefer for faster target acquisition at lower powers.

Whether you're running an AR, a precision rifle, or a bolt gun in .223/5.56, the Hardline delivers the magnification and reticle specificity you need without overpromising on features you don't. This is a scope that lets you focus on your shooting instead of your gear.

Key Features

• 4-16x magnification with 42mm objective for versatile brightness and target resolution across ranges
• 30mm tube diameter provides structural rigidity and expanded adjustment travel
• BDC 223/5.56 reticle offers integrated ballistic compensation for the most popular intermediate cartridge
• Second focal plane design maintains consistent reticle size for reliable aiming at all magnifications
• Lightweight at 20 ounces—minimal impact on rifle balance and handling
• 3.7-inch eye relief provides comfortable shooting position and reduced risk of scope bite
• Black anodized finish resists corrosion and provides a low-profile appearance

Specifications

Frequently Asked Questions

What rifles is the Hardline 4-16x42mm compatible with?

The BDC 223/5.56 reticle makes this scope an ideal match for AR-15s, modern sporting rifles, and other platforms chambered in .223 Remington or 5.56 NATO. The 30mm tube and standard Picatinny top rail mount design work with any modern rifle equipped to accept a scope. If you're running a different caliber, the .223/5.56 ballistic profile may not match your ammunition trajectory.

Will the BDC reticle work for long-range shooting?

The BDC 223/5.56 reticle is engineered with ballistic compensation for that specific cartridge platform. Crimson Trace offers alternative reticle options (including a Long Range BDC) for other use cases, but this model ships with the .223/5.56 BDC only.

What's included in the box?

The facts provided do not specify what mounting hardware, lens covers, or accessories are included with this scope. We recommend confirming the complete package contents before purchase.

How does the 30mm tube compare to a 1-inch scope?

The 30mm tube is thicker and structurally stiffer than a 1-inch design, providing greater internal adjustment range and increased durability under recoil. The trade-off is slightly more weight and the need for 30mm-compatible rings and mounts.