C4 Rear Aperture Insert 500 There's plenty of picatinny rails

There's plenty of picatinny rails for mounting your favorite accessories

- For still water use only

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

- GPSMAP 8610 -

C4 Rear Aperture Insert 500 There's plenty of picatinny railsThe 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