Leapers, Inc. - UTG Instant Target Aiming Sight, 4.2", Red/Green CQB Dot, with Quick Disconnect Mount, Black SCP-DS3840W
Specifications:

Magnification	1x
Objective	32mm
Field of View	100.00 ft @ 100 yds
Eye Relief	Unlimited
Dot Size	4 MOA
Tube Diameter	38mm
Length	4.19"
Weight	9.80 oz
Finish	Black
Battery	CR1620
Reticle	Red/Green Dot
Adjustment Size	.5" @ 100 yds
Proofs
Optic Coating
Windage Elevation