Franchement j'adore le concept avec le système tout en un il à l'air très efficace mais alors c'est génial pas besoin de disque de rupture il à l'air assez puissant en plus The retention to seal the small explosion chamber is provided by an O-ring, tightened by the male thread of the barrel, which ...

D_Hall who created GGDT/HGDT still visits the forum occasionally but unfortunately I believe he had stated that no further updates were forthcoming.