Transform your CAW Gas Shotgun "Coach Gun" into a long-barreled shotgun, reminiscent of those used during the black powder era of the Wild West!
【Specifications】
・Overall length: 405mm
・Overall length when attached: 1270mm
・Barrel length: 850mm
・Slip-on type
・Made of plastic
*As it comes in two halves, customers must glue and screw them together themselves.
*The standard barrel length is the appropriate length for firing BBs.
*Making it longer will reduce the range. This is likely because the volume inside the barrel increases relative to the volume of vaporized gas in the cartridge, causing a negative pressure (?), and the resistance against the BB inside the barrel increases (?). (From the official MULE blog)
![[MULE/CAW] THE Coach Gun Extension Barrel Kit (New Release June 2, 2026)](http://rock-et.jp/cdn/shop/files/4571261544160_1024x1024.jpg?v=1778209038)
![[MULE/CAW] THE Coach Gun Extension Barrel Kit (New Release June 2, 2026)](http://rock-et.jp/cdn/shop/files/4571261544160_3_1024x1024.jpg?v=1782088774)
![[MULE/CAW] THE Coach Gun Extension Barrel Kit (New Release June 2, 2026)](http://rock-et.jp/cdn/shop/files/4571261544160_1_2_1024x1024.jpg?v=1782088773)
![[MULE/CAW] THE Coach Gun Extension Barrel Kit (New Release June 2, 2026)](http://rock-et.jp/cdn/shop/files/4571261544160_2_2_1024x1024.jpg?v=1782088774)
![[MULE/CAW] THE Coach Gun Extension Barrel Kit (New Release June 2, 2026)](http://rock-et.jp/cdn/shop/files/4571261544160_medium.jpg?v=1778209038)
![[MULE/CAW] THE Coach Gun Extension Barrel Kit (New Release June 2, 2026)](http://rock-et.jp/cdn/shop/files/4571261544160_3_medium.jpg?v=1782088774)
![[MULE/CAW] THE Coach Gun Extension Barrel Kit (New Release June 2, 2026)](http://rock-et.jp/cdn/shop/files/4571261544160_1_2_medium.jpg?v=1782088773)
![[MULE/CAW] THE Coach Gun Extension Barrel Kit (New Release June 2, 2026)](http://rock-et.jp/cdn/shop/files/4571261544160_2_2_medium.jpg?v=1782088774)
