The Faxon Stainless Steel Plan B to HUB Adapter enables shooters to connect Plan B style suppressor mounts to any 1.375×24 TPI HUB compatible system, which is a small part that solves a genuinely annoying problem. Engineered for precision, strength, and cross platform compatibility, it gives builders and shooters the versatility to run multiple suppressor configurations without buying duplicate hardware. One adapter, and your existing mounts talk to your existing cans.
What the Faxon Stainless Steel Plan B Adapter Does
The HUB standard exists so that suppressors and mounts from different manufacturers can work together, and it has quietly become one of the most useful conventions in the industry. The problem is that a shooter with an established collection often has mounts on one standard and suppressors on another. An adapter bridges that gap for a fraction of the cost of replacing either side.
The Faxon Stainless Steel Plan B to HUB Adapter is aimed at the builder and the multi platform shooter who runs suppressors across AR-10, AR-15, and precision rifle setups. If you move one can between several hosts, or you own several mounts and want them all to feed a single suppressor, this is the part that makes that arrangement work.
Key Features of This Adapter
- CNC machined from high grade stainless steel, maintaining perfect concentricity for safe and repeatable suppressor mounting.
- Connects Plan B style mounts to any 1.375×24 TPI HUB compatible system, the industry standard thread for HUB.
- QPQ nitride finish providing exceptional corrosion resistance, heat tolerance, and surface hardness.
- Manufactured to strict alignment and dimensional standards, reducing point of impact shift under sustained use.
- Cross platform versatility across AR-10, AR-15, and precision rifle configurations.
Specifications and Why Precision Matters Here
Concentricity is not a marketing word on a suppressor adapter, it is the entire safety argument. Every threaded interface between the bore and the end of the suppressor is an opportunity for misalignment, and misalignment is what produces a baffle strike. Adding an adapter adds an interface, which is exactly why the adapter has to be held to tighter tolerances than the parts it joins.
CNC machining from high grade stainless steel is what delivers that. The Faxon Stainless Steel Plan B adapter is produced to strict alignment and dimensional standards, and the result is optimal accuracy with minimal point of impact shift when the suppressor goes on and comes off.
The QPQ nitride finish handles the environment. Suppressor mounting surfaces see extreme heat and carbon deposition, and a hardened, corrosion resistant surface is what keeps the threads serviceable after hundreds of mounting cycles.
Installation, Compatibility, and Care
Confirm both sides of the interface before ordering. Your suppressor or mount must be 1.375×24 TPI HUB compatible on one end and Plan B pattern on the other, and there is no substitute for verifying this against your actual hardware rather than assuming.
Install with clean, dry threads and use a high temperature anti seize designed for suppressor use. Carbon fouling at these temperatures will weld untreated threads together over time, and a seized adapter is a genuinely difficult problem to solve. Confirm alignment with a bore alignment rod before your first shot, every time you change the configuration. Keep the correct tooling on hand rather than improvising with pliers, because marring the flats on a part machined this precisely is an easy mistake to make and a hard one to undo.
Check tightness periodically during a shooting session, since thermal cycling can loosen a mount that felt secure when cold. Clean carbon from the threads regularly and inspect the surfaces for damage. For muzzle devices, barrels, and other build components, browse our parts and upgrades category, and note that suppressors themselves are regulated separately.
Faxon Firearms built this adapter for a seamless transition between Plan B and HUB suppressor systems. Ships direct to your door, no FFL required.
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