NcStar Ultimate Sighting System Gen-2, 3-9x42 Mil-Dot Rifle Scope

The NCStar Ultimate Sighting System Gen-2 is a 3-9x42 mil-dot rifle scope built around a dual-optic platform that pairs magnified capability with close-range speed. This scope works best for AR-15 shooters who want both precision at distance and quick-target acquisition without switching guns—whether you're training at the range, hunting in variable terrain, or setting up a versatile patrol rifle. The system includes an integrated micro red dot mount atop the ocular housing, so you get two aiming solutions in one tight package.

The scope itself is optimized for modern AR mounting. The centerline sits at 1.5 inches to clear low-profile rear backup iron sights, and the BDC turret is lowered to keep your overall sight height manageable when the micro dot is mounted on top. The 100–500 yard bullet drop compensator is calibrated for M193 55gr. mil-spec ammo, so zero it once and adjust for distance with confidence. Multi-coated lenses gather light across the magnification range, and the quick-focus eyepiece lets you dial in the reticle without fumbling. The integrated sun shade protects the glass and cuts glare without adding bulk.

The reticle works in blue or green, with independent brightness adjustment for each color so you can dial in visibility for your light conditions—dawn, bright sun, or low-light scenarios. The scope ships with lens covers and batteries, plus a red micro dot optic with an on/off switch, a dedicated micro dot mount, dust cover for the dot, and its batteries. It's the kind of all-in-one setup that rewards shooters who plan ahead and want a real solution, not a gimmick.

Key Features

• 3-9x magnification with 42mm objective lens for light gathering and field of view
• Mil-dot reticle with blue and green illumination (adjustable brightness for each color)
• 100–500 yard BDC calibrated for M193 55gr. FMJ ammunition
• Quick-focus eyepiece for fast reticle adjustment
• Fully multi-coated optics for contrast and light transmission
• Integrated micro red dot reflex sight mount on ocular housing
• Centerline height set at 1.5 inches for AR-15 and low-profile BUIS compatibility
• Lowered BDC turret for compact profile with mounted micro dot
• Integrated slant-cut sun shade
• Includes micro red dot optic with on/off switch, dust cover, and all batteries
• Auto-locking quick-release mount with compact lever
• Black anodized finish
• Includes lens covers

Specifications

Frequently Asked Questions

Will this scope fit an AR-15 with backup iron sights?

Yes. The centerline is raised to 1.5 inches specifically to clear low-profile rear BUIS, so you can keep backup sights in place without interference.

What ammunition is the BDC calibrated for?

The bullet drop compensator is calibrated for M193 55-grain full metal jacket mil-spec ammunition. The turret dials out to 500 yards.

What's included in the system?

You get the 3-9x42 scope with illuminated reticle, a red micro dot reflex optic with on/off switch, a micro dot mount that attaches to the ocular housing, an auto-locking quick-release mount for the scope, lens covers for both optics, dust cover for the micro dot, and all necessary batteries.

Can I use just the magnified scope without the micro dot?

The scope is sold as part of the Ultimate Sighting System, which includes the micro red dot optic and integrated mount. If you prefer to run only magnification, the scope can function as a standalone 3-9x42, though the top-mounted micro dot hardware will be present.