Action Army has perfected the design of their perfect hop-up chamber with this one. It is made of high quality ABS, which is resistant to damage. The excellent seal design and the multi-function set make it easy to use and clean
With this hop-up chamber, you can adjust the performance of your rifle according to your aiming point and aim at any distance. The adjustable inner barrel makes it easy to install and remove, so you can change the barrel quickly when needed.
action army cnc aluminum perfect hop up chamber