This combo puts together a Witt Machine & Tool Mod-1 223/5.56 ultra compact suppressor, a Plan B HUB mount adapter and a Breek Arms Plan B Scorch 3-Prong Flash Hider, 1/2x28. The muzzle device threads onto 1/2x28 barrel threads and carries the Plan B mounting interface. The HUB mount adapter threads onto the muzzle device and provides the 1.375x24 HUB thread, which is the rear thread on the Mod-1. All three parts ship together as one listing, and the suppressor is a serialized item.Key FeaturesWitt Machine & Tool Mod-1 223/5.56 ultra compact QD suppressorRated for .223 Remington and 5.56 NATO416 stainless steel with high-temperature black Cerakote5.25 in long, 1.625 in diameterFull-auto rated, no barrel length restrictionPlan B HUB mount adapter, 17-4 stainless steel, black Nitride1.375x24 HUB thread to match the Mod-1 rear threadBreek Arms Plan B Scorch 3-Prong Flash Hider, 1/2x28Muzzle device threads onto 1/2x28 barrelsSuppressorThe suppressor is the Witt Machine & Tool Mod-1 223/5.56, an ultra compact quick disconnect suppressor rated for .223 Remington and 5.56 NATO. It is machined from 416 stainless steel with a high-temperature black Cerakote finish and measures 5.25 in long by 1.625 in in diameter. The rear of the suppressor is threaded 1.375x24, the thread the HUB mount adapter in this combo provides. Witt Machine & Tool lists it as full-auto rated with no barrel length restriction, and it is made in the USA.Plan B HUB Mount AdapterThe HUB mount is a Plan B HUB mount adapter machined from 17-4 stainless steel with a black Nitride finish. One end threads onto a Plan B-style muzzle device, and the other end is cut to the 1.375x24 HUB thread. That HUB thread is the rear thread on the Mod-1, so the adapter sits between the muzzle device and the suppressor. Hex flats machined into the body give a wrench a flat surface to grip.Flash HiderThe muzzle device is the Breek Arms Scorch, part number BRK4415, a compact, low-profile 3-prong flash hider made in the USA. It is machined from hardened 4140 steel with a Nitride finish, measures 1.75 in long and weighs 2.2 oz. It threads onto 1/2x28 barrel threads, and Breek Arms lists it for .223 and 5.56 NATO as well as .30 caliber, with a 0.369 in exit hole. The Scorch is built for Plan B and Atlas mounting systems, so the HUB mount adapter threads onto it.