Item Description:
-The Alpha Parts M140 Cylinder Set is now made specifically for the Systema Over 14.5 Inch Inner Barrel PTW M4 Series.
-The cylinder casing is incredibly stronger, therefore being resistant to deformation caused by minor drops, and dents caused if a stray BB is caught between the cylinder casing and magazine while reloading.
-it retained the familiar color coding of cylinders meaning you know the exact power of the cylinder.