Description
Armaspec HUB Thread Adapter
The HUB adapter converts a Bravo-style 1.375×24 external thread mount to a .9×24 internal thread, which lets a suppressor built around one mounting standard attach to a host firearm or mount system using the other, without buying a second full direct-thread mount to bridge the two.
Specs
- External thread: 1.375×24, Bravo pattern
- Internal thread: .9×24
- Material: 17-4 stainless steel
- Finish: Black
The adapter is machined from 17-4 stainless steel rather than a lighter aluminum, trading a small amount of added weight for meaningfully better durability at a mounting interface that gets repeated thread engagement and disengagement over the life of a suppressor system. That durability matters more here than on most accessories, since a worn or damaged thread interface can affect how consistently a suppressor mounts and indexes shot to shot.
This is a mounting-system component, not a suppressor itself, and it does not carry its own NFA transfer requirement the way a suppressor or a short-barreled rifle does. The suppressor and the host firearm it connects to remain separately regulated, and this adapter simply changes which thread pattern sits between them.
A shooter running more than one suppressor mount standard across different host firearms is the primary use case here: rather than standardizing every host to a single thread pattern, or buying a second complete mount system for a different-pattern suppressor, this adapter lets existing hardware bridge the gap.
Buyers newer to suppressor ownership sometimes assume that every suppressor and every host firearm share one universal thread standard, which isn’t the case across the industry; different manufacturers have settled on different external and internal thread patterns over the years, and a growing suppressor collection built up over multiple purchases often ends up spanning more than one standard. An adapter like this one is exactly the kind of small, inexpensive part that prevents that mismatch from turning into a wasted purchase or an unusable combination, letting existing hardware bridge a gap that would otherwise require buying an entirely new, redundant mount system. Because this adapter is a small, precision-machined part rather than a mass-produced commodity accessory, verifying thread pitch and pattern against the specific suppressor and host combination before ordering is worth the extra minute, since a mismatched thread pattern won’t be caught until the parts are already in hand. Redland Rifle stocks common adapter patterns specifically because thread mismatches like this are a frequent, avoidable friction point for suppressor owners, and stopping in or calling ahead to confirm a specific combination before ordering is always an option.
