C4 Rear Aperture Insert 500 - Continuous Upper Rail: Yes

- Continuous Upper Rail: Yes

- Great for training young shooters as they can easily see when they hit the target

- "T" models represent full telescopic version

The grill is specially-designed to stand up on its end for low-profile storage in tight spaces

600 candela peak central intensity and 55 lumens measured system output

C4 Rear Aperture Insert 500 - Continuous Upper Rail: YesThe Ultradyne C4 Rear Aperture Insert utilized Dynalign Technology allowing for a concentric sight picture. Dynalign's circle within circle sight picture allows for faster sight picture acquisition. The use of the front aperture further reduces parallax affect which makes accuracy less depend on precise sight alignment. Dynalign is a faster and more accurate sight picture that can improve your shooting performance. Designed specifically for Ultradyne