The MadBull Ace M4 Buffer Tube is specifically designed to install an 11.1v lipo battery in the buffer tube of an M4 AEG. This aluminum tube has 7 positions for an M4 stock and sports a QD endcap for easy battery changes.
Installing a lipo battery in the buffer tube of an M4 allows for more customization of the rail system and stock assembly, and eliminates the need for a PEQ box.
This stock tube will fit the Firefox 1100Mah 11.1v or 7.4v lipo batteries, as well as other lipo batteries designed for use in M4 buffer tubes. The MadBull buffer tube is a 7 position M4 stock tube, and will fit most airsoft or mil-spec M4 sliding stocks.
The MadBull stock tube is constructed of T6 aluminum, just like a real rifle. Other airsoft companies use cheaper alloys which are heavier and require a thicker wall to achieve the same strength. The Madbull ACE buffer tube is anodized instead of painted, giving a longer lasting, more durable finish. One other feature that sets the MadBull stock tube apart is the QD endcap. Instead of being pinned on with a set screw, the end cap threads onto the stock. This allows for tools free battery changes.
Whether you want to add a MAGPUL stock to your M4 AEG, or you just don't want to deal with possibly cutting a wire with a crane stock, the MadBull ACE Lipo Battery Buffer tube is the ideal solution.