For: Masamune 6.01mm Extreme Precision Inner Barrel for M1A1/M4 CQB (300mm)Product Information:
Outstanding performance right out of the box. My AEG performs at 384 FPS with .20g BBs (12 FPS greater) with this installed. Makes human size targets at 100-125 feet extremely easy to hit especially with heavier .25g/.28g BBs. Groupings are around 4 inches at 100 feet. Installation is literally less than 2 minutes.
-Easy to install
-Increase in accuracy
-Increase in precision
-Needs constant cleaning especially for outdoor use