Madbull have sent over a video showing their SWR barrel extensions:
Madbull is proud to announce the SWR barrel extensions. Founded in 1994, SWR is a design and manufacturing company specializing in suppressors and small arms development. SWR is hands down one of the finest makers of barrel extensions and now you can get your hands on an airsoft version! The SWR barrel extensions come in three styles. There is the 5.56 Wolverine, the 9mm Trident, and the .45 H.E.M.S. They are all capable of being installed on any 14mm CCW outer barrel; rifle or pistol. They are light-weight, uniquely designed with full trade marks, constructed of solid aluminum and coated with a matte black finish. They are great looking, highly affordable, and available now online or at a local retail store where ever Madbull accessories are sold!
Youtube Video Link
(Madbull)