Flip Up Front & Rear Crab Iron Sights

Flip Up Front & Rear 21mm Rails Crab Iron Sight Kit 

Features:
- Compatible with most 20-21mm rails
- Flip-up Front & Rear Iron Sight Set
- Diamond-shaped A2 style aperture, allowing for quick and accurate target acquisition
- Secure ball bearing pivot detent locking mechanism
- Low profile folding design
- Dual Apertures
- Rear sight Windage adjustable with click knob
- Front sight A2 post elevation adjustable
- Non-rust hard-anodized finish

Specifications
Dimensions :
width: 33mm
Length: 32mm (upright position)
Height: 45mm (upright) 15mm (folded),
measured from rail
Color: Black
Material: Metal
Interface: Picatinny / Weaver Rails