The T-N.T. hop up retrofit kit for VFC M4 Series GBBR is a premium upgrade over the stock ones found in the out of the box guns listed. The kit ensures better accuracy due to better and finer tuning of the hop up.
Really good/Très bien
Installed on a SR-16 E3 VFC GBB.
Great accuracy, i got side spin and many range problems out of the box and this kit solved all problems.
The only cons is you need to remove the gas block hop-up system and cut the spring.
Installé sur un SR16 E3 GBB VFC.
Bonnes performances, j'ai eu beaucoup de soucis de side spin et de portée d'origine. Ce bloc a corrigé tout les soucis.
Le seul désavantage est qu'il faut retirer le système hop-up avec le gas block et couper le ressort.
