所マックのまっくトコロ with Mach Sakai talk about the custom extension they made for the Maruzen M1100 Shotgun. This extension allows one to load 9+1 shells into the shotgun has more shells to use than normal. Watch the video to see how the prototype was made and if you like what you see.
MadBull Airsoft announce their solution to poor shot groupings when shooting airsoft guns. Their Outer Barrel Extension/Stabilizer is a 2-Inch extension helps in improving shot groups by reducing variation together with inner barrel with O-ring stabilizer. The package comes with the 2-inch outer barrel extension, inner barrel and O-ring stabiliser. Test results shown below: