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SHOP NOWThis discussion explains how common suppressor mounting systems work and where each design excels or falls short. It compares hub, direct thread, Surefire, A2 gate lock, Huxworks, and Q taper setups.
The conversation opens with questions about compatibility between different muzzle devices and suppressors, including an LMT muzzle device working on a Zena setup and hub-style cans like the Otter Collabs Infinity Ray. The hosts explain that many companies are moving to hub mount capability instead of proprietary rear ends. A hub mount uses a common rear thread pattern, described as 1.375 with 24 threads, so the suppressor can accept various hub-compatible adapters. This lets users pair a preferred quick-detach muzzle device with a preferred suppressor rather than being locked into one brand’s ecosystem. Older approaches, such as pin-and-weld setups from companies like Sons of Liberty with Dead Air KeyMo or KeyMicro devices, tended to lock users into a single mounting system, while hub mounts open that up.
They outline the main suppressor mounting approaches, starting with direct thread. Direct thread is described as the simplest option, where the suppressor threads directly onto the barrel with no intermediate muzzle device or interface. This keeps weight down and removes extra parts that can introduce play or complexity. The hosts note that this discussion is focused primarily on rifles, with pistol-specific mounting and booster pistons set aside for later. Direct thread is presented as a straightforward, reliable way to mount a rifle suppressor when quick-detach capability is not required, and it avoids some of the added weight and potential sealing issues that can come with certain QD systems.
The discussion moves to Surefire mounts, highlighting the RC2 and RC2 Mini as long-standing options. A Surefire hub-capable mount is shown attached to a Warcomp muzzle device. The Warcomp is described as a hybrid between a flash hider and a compensator, with ports on the top that provide some compensation. However, those ports prevent a perfect gas seal when a Surefire suppressor is mounted. Gas escapes through the ports, which can increase sound at the shooter’s ear and reduce overall suppression. The ports also dump carbon into the ratcheting collar area, increasing the chance of carbon lock. They contrast the Warcomp with other Surefire muzzle devices like the muzzle brake and three-prong flash hider, which use a labyrinth seal—visible as divots around the device—to keep carbon away from the locking collar and improve sealing. Closed-tine flash hiders in the A2 style from Surefire lack this labyrinth seal, which is noted as a drawback.
They then cover the standard A2 flash hider, calling it a de facto QD host even though it was never designed for suppressors. Because A2 flash hiders are so common, suppressor makers developed ways to mount cans to them. One such approach is gate lock technology, a locking system that interfaces with A2 flash hiders. The example shown uses a collar that is pushed down and then ratcheted onto the A2 until the suppressor is finally secured. The hosts emphasize that not all A2 flash hiders are identical, mentioning that some manufacturers, such as HK, are frequent outliers in dimensions. They point out that A2 devices were not intended as suppressor hosts, so the seal is imperfect and users should understand the limitations. Gate lock systems make use of existing A2 flash hiders but do not provide the same gas sealing or refinement as purpose-built suppressor mounts.
The conversation shifts to Huxworks and its flow-through suppressor designs. Huxworks offers several flash hiders, and one of them has become a common factory muzzle device on many Geissele rifles, especially on pin-and-weld configurations in lengths like 13.7, 13.9, and 14.5 inches. Their muzzle devices interface with the Huxworks Flow series of suppressors. Huxworks uses reverse threading to attach the suppressor to the muzzle device. One host is skeptical of reverse threading, noting that if the muzzle device is not properly torqued, it can walk off as the user turns the suppressor. The other host defends the design, arguing that a muzzle device should be correctly torqued before shooting and that reverse threading helps ensure the suppressor comes off without loosening the device. They add that the internal gas flow pattern of Huxworks cans works against the flash hider’s flow, tending to torque the muzzle device tighter under firing. Testing showed it does not clamp excessively but helps keep the device from backing out.
They close by discussing taper-based mounting systems. A taper is described as a negative angle on the outer diameter that forces a tighter mechanical lock as the suppressor is torqued down, improving gas sealing and keeping threads cleaner. The Q Cherry Bomb muzzle device is used as an example. It is jokingly called the worst muzzle device to shoot unsuppressed, implying it strongly encourages suppressed use. On a used Cherry Bomb, carbon buildup is visible on the front face while the 25-degree taper and threads remain relatively clean, illustrating how the taper seals gas before it reaches the threads. The hosts emphasize the principle of “taper before threads” as a preferred design approach. They note that this concept echoes earlier work from Allen Engineering on Mark 12 and Ops Inc style systems, where similar taper ideas were used, and that Q essentially simplified that style into a single compact muzzle device.
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