C2 Folding Front And Rear Sight Combo - Aperture

The Ultradyne USA C2 folding front and rear sight combo brings precision aperture shooting to your AR or tactical rifle with a no-fuss mechanical sight system. Built from 416 stainless steel and aircraft aluminum, this combo delivers the ruggedness you need without the weight penalty. Whether you're running your rifle at the range, in competition, or as a duty backup to an optic, the C2's dual aperture design gives you fast target acquisition and the accuracy that comes from a properly aligned sight picture.

What sets the C2 apart is its practical dual-aperture system: you get a 12 MOA front aperture for speed and a smaller ghost ring option stored right in the oversized windage knob of the rear sight. That means no hunting for your secondary aperture—it's always on hand. The smaller aperture reduces parallax and optical distortion, sharpening your sight picture, while the larger one keeps your sight radius wide open for quick work. Both configurations let you see 100% of your target instead of obscuring it with the sight itself, which keeps your focus where it belongs and reinforces solid shooting fundamentals.

Adjustment is straightforward: the rear sight handles windage zeroing with positive click detents, while the front sight offers both windage and elevation adjustability so you can dial in your zero without tools. CNC machining in the USA ensures consistent quality and durability across the entire combo. Designed for Picatinny rail mounting, the C2 folds flat when you're running a primary optic, ready to deploy instantly if your main sight fails.

Key Features

• Dual aperture system: 12 MOA front and ghost ring rear for flexible target acquisition
• Built from 416 stainless steel and aircraft aluminum for strength and light weight
• Compact folding design that doesn't interfere with mounted optics
• Windage-adjustable rear sight with oversized knob; aperture storage integrated into knob design
• Front sight with windage and elevation adjustment capability
• Tool-less elevation adjustment for fast field zeroing
• Positive click detents for repeatable, reliable adjustments
• CNC machined in the USA for precision and durability
• Picatinny rail compatible

Specifications

Frequently Asked Questions

What firearms are the C2 sights compatible with?

The C2 is designed for any rifle or platform with a Picatinny rail system. This includes modern AR-15s, AR-10s, and other tactical or sporting rifles that use standard Picatinny tops.

Can I use the C2 sights with a mounted optic?

Yes. The folding design allows the sights to collapse flat when a primary optic is in use, and they deploy quickly as a backup if needed. They won't interfere with most scopes or red dots in the co-witness position.

How do the dual apertures work?

The C2 comes equipped with a 12 MOA front aperture and a smaller ghost ring rear aperture. The smaller rear aperture is stored in the oversized windage knob when not in use, giving you two sight picture options without carrying a second set of sights. The larger front aperture offers fast target acquisition, while the smaller ghost ring sharpens precision.

Do I need tools to adjust elevation?

No. The front sight offers tool-less elevation adjustment, making it easy to dial in your zero at the range or in the field without carrying special wrenches or sight tools.