The Madbull ACE M4-7 Extension Tube is a high quality buffer tube that features many improvements over the standard design. The Madbull ACE M4-7 features fully licensed trade marks as well as stock position markings. This extension tube is a great solution for the user looking for a place to store their battery without having to use a external battery storage option. The end cap of the tube is a tool less design that can be easily twisted off for quick battery access. A QD sling swivel attachment point is machined into the tube and allows use of any sling that the user prefers. This extension tube is made from high quality T6 aluminum that lends itself to be both light and strong. The Madbull ACE M4-7 Extension Tube is a great tube that is sure to perform well under the most intense conditions.
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