For those who prefer the ACOG-type sight which has the 4x32 magnification like the real the ACOG TA01NSN rather than the red/green dot sights, you can check this out at Checksix Airsoft..."China made ACOG. Designed to represent the real ACOG used by the US Special Forces. This China made ACOG also has 4x magnification. It comes with a BUIS for close quarters and fast acquisition of targets. It also comes with authentic looking markings."