Installation of Riot Balls/KTS High Power Upgrade Valve for Umarex HDP
![](https://i.ytimg.com/vi/hObGwjFgUTI/mqdefault.jpg)
16:04
vidéo tuto HDP 50 t4e installation du Powerkit 20 joules identique 20 joules et plus (UMAREX)
![](https://i.ytimg.com/vi/VZxIH-9PgVI/mqdefault.jpg)
27:40
(Gun 55) HDP50 Power Modification
![](https://i.ytimg.com/vi/tL-25hCboyA/mqdefault.jpg)
18:20
The ARMA Grunt ARMA Reforger
![](https://i.ytimg.com/vi/NzYJPuXrzsY/mqdefault.jpg)
5:15
3dprinted valve washers for HDR50 on TPU 95A
![](https://i.ytimg.com/vi/tatlGT3xVgM/mqdefault.jpg)
8:17
Le pilote d'un SU-25 russe a tenté de s'éjecter de l'avion pour éviter un missile, mais a échoué.
![](https://i.ytimg.com/vi/GnMNQGMQ6JA/mqdefault.jpg)
11:08
Umarex HDP50, No Restrictor, Steel Balls
![](https://i.ytimg.com/vi/5Qz0vy0cYKM/mqdefault.jpg)
11:16
Best SLUGS for HDR 50 RAM. Make them yourself with BallMAKER Mold. Instruction & Shooting Test.
![](https://i.ytimg.com/vi/KvbXXMcpwLs/mqdefault.jpg)
0:44