HUB QD Adapter 2.0 THE HUXWRX HUB-QD Adapter 2.0 is designed to allow any suppressor that has 1.375"x24 thread pattern mounting to be compatible with HUXWRX & OSS QD muzzle devices. HUB-QD Adapter fit: HUB (1.375x24... MSRP: Was: Now: $234.00 Add to Cart