This barrel extension allows the projectile’s travel to be extended in order to have better precision and also to adapt accessories.

Its dense polymer composition offers three picatinny rails as well as M-Lock slots .

It is compatible with Umarex  T4E HDR50 and HDR50L models .

At the end of this accessory you will find a thread allowing you to add a muzzle brake that can duplicate as a window breaker.