Action Army 6.03mm AEG Barrel 410mm Batteries Easy to use and takes

Easy to use and takes standard CR123 lithium batteries

A QD Quick Release Weaver Style Mounting System

Echo 1 PSR

One of our most popular guns

Action Army 6.03mm AEG Barrel 410mm Batteries Easy to use and takesThe Action Army 6. 03mm AEG Barrel 410mm. This is the popular size for longer M4 airsoft guns. Fits inside AEGs that require this length. This is a 6. 03 inner barrel diameter, so it allows for less jams and tolerances than the 6. 01mm. A very popular choice as an alternative to the Prometheus. One piece high grade metal machined. Precision smooth inner bore with nickel plating. This inner barrel is an upgrade to improve your gun's performance,