The Airsoft Systems M4 Smart Hop Up is a dual-purpose airsoft hop-up chamber. It's a one-piece design for M16 type AEGs, and features an easy click-adjustment slider. This provides consistent accuracy and keeps the hop-up setting exactly where you leave it.
The most unique function of the ASHU SMART hop up is the integration with the ASCU MOSFET. The hop-up can detect when the magazine is empty, which will stop the gun from firing. Resume firing by pressing the bolt stop. This delivers advanced AEG function, much like a PTW, in any standard M4 or M16 airsoft gun.
Airsoft Systems ASHU Hop-Up Chamber Features:
-Empty Magazine Detection
-Empty Mag Cutoff
-Precision Click Adjustment
This hop-up unit delivers accuracy and precision in any compatible gun, but MUST be paired with the ASCU Gen 3 MOSFET to integrate the empty magazine cutoff.