Madbull DD Type Outer Barrel 16inch BK

The outer barrel for AEG that boasts of a unique quality of MAD BULL that has acquired the Daniel Defence official license.
It is a simple and functional style.
Please use as a replacement for changing the style or breaking the existing outer barrel.

Compatible Models

Widely compatible with standard M4 AEGs.
This is for conventional AEGs and it is not available for Tokyo Marui next-generation AEG/GBB/PTW.

*Depending on product differences and product compatibility, it may need to be fitted when inserted into the upper receiver or may be hard to insert into the chamber.

What is the outer barrel ?

As you know, the barrel of the real gun is not divided into the inside and the outside. However, the barrel of the AEG is divided into the outer barrel(outside) and the inner barrel(inside).
The outer barrel plays the role of protecting and fixing the inner barrel, furthermore, it is possible to install GBB, flash hiders and so on.
Moreover, it also plays a role as an exterior item and there are various types such as shapes, length, colors and so on.
In the case of the M4 series, it also plays a role such as fixing the chamber.