Maxx Model CNC Aluminum Hop-Up Chamber for M4 Airsoft AEG Rifles (Model: M4G)BLACK laser Your choice of recoil spring

Your choice of recoil spring guide rod in 4

but this adapter will work for any regulator

Magazine Capacity: 210rd Hi-Cap ( Mid-Capacity Mags Available Here

It is very easy to handle and fun to use

Longer-lasting performance

Maxx Model CNC Aluminum Hop-Up Chamber for M4 Airsoft AEG Rifles (Model: M4G)BLACK laser Your choice of recoil springFeatures Hop up for standard AEGs with standard AEG inner barrels (Newest Gen.) Machined from a solid aircraft aluminum block with tight tolerances to provide better accuracy, consistency, and durability Precision rotary dial design for fine hop up adjustments Re engineered the hop up levers and nubs to work best with R hop, Flat Hop and Standard Hop to keep the BBs shooting straight and accurate on every single shot Accepted the nozzle length from