ACM - Hartman MH1 Style Red Dot Sight m40 Full Metal Hop Up Chamber

Full Metal Hop Up Chamber and All-time upgrade available

The gas is stored in a removable gas cartridge stored in the stock of the gun

Hop Up Type: Adjustable

These Helmets fit larger than the Fast Bump Style

Even though it is a smaller firearm in general and the internal parts have been moved closer together

ACM - Hartman MH1 Style Red Dot Sight m40 Full Metal Hop Up ChamberHartman MH1 style red dot sight The MH1 is an advanced tactical red dot reflex sight. It has the largest field of view through the sight which greatly improves target acquisition and situational awareness in day & night (NVD) scenarios. The MH1 uses a shooter designed reticle which helps to maintain the weapon on a vertical plane for more accurate shooting using balancing lines at 3 & 9 oclock and a centered red dot. Unique functions such as a USB