Madbull Ultimate 6.01mm Tight Bore Barrel 7075 Aluminium (229mm) Net-Weight-(g)_262 You can use all Madbull

You can use all Madbull BB grenades without any problems

This Reinforced 2nd Sear Design for supporting high power upgrades

Marui Adjustable HopUp is located next to the ejection port cover0

Polymer Finger Grooves Pistol Grip

Madbull Ultimate 6.01mm Tight Bore Barrel 7075 Aluminium (229mm) Net-Weight-(g)_262 You can use all MadbullMadbull Ultimate 6. 01mm Tight Bore Barrel 7075 Aluminium (229mm) 7075 Aluminum Construction (even higher grade aluminum than most of real gun and aircraft manufacturers who utilize by 6061 Aluminum) Suitable for MP5A4, A5, SD5, SD6, AK Beta Series Airsoft Rifle This is the Mad Bull 6. 01 mm Tight Bore Barrel with a length of 229mm. This tight bore barrel is a quick and easy upgrade to get you more power and greater accuracy. The barrel is set at 6.