Home / Accessories / Comstock Armory / Comstock Armory HUB - Extended Plan-B Adapter (HPA) Titanium Suppressor Adapter
Comstock Armory HUB - Extended Plan-B Adapter (HPA) Titanium Suppressor Adapter
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Aug 26, 2026
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Description
Comstock Armory HPA Titanium Extended HUB Plan-B Suppressor AdapterThe Comstock HPA Titanium HUB Adapter is a purpose-built component for shooters assembling a compact, repeatable Plan-B-pattern suppressor mounting system. It combines Grade 5 titanium, a PVD finish and clearly defined tool flats to support secure installation and convenient suppressor attachment. The product uses 1.375-24 HUB/Bravo threads and is compatible with Comstock, Rearden and other common Plan-B-pattern muzzle devices.It converts a compatible suppressor rear interface to the widely used Plan-B-pattern mounting system, allowing quick attachment to compatible Comstock, Rearden and similar muzzle devices. The design emphasizes low mass, practical tool engagement and reduced overall system length compared with bulkier mounting solutions.Ready to complete your suppressor-mounting setup? Review fitment, confirm current availability and add the Comstock HPA Titanium HUB Adapter to your cart at ARMSAGORA's retailers.A Streamlined Plan-B Suppressor InterfaceA properly matched adapter can make it easier to move a compatible suppressor among multiple hosts while maintaining a compact, repeatable mounting interface. This adapter provides dedicated wrench flats for controlled installation and is built from premium material selected for strength, heat resistance and long service life.Key Features and SpecificationsModel: HPA-B-TIPrimary thread/interface: 1.375-24 HUB/BravoMaterial: Grade 5 titaniumFinish: PVDWeight: 1.1 ozOverall profile: extended profileAdded system length: 0.7 inInstallation interface: 1-7/16 in wrench flats and 1.5 in spanner notchesCaliber/bore guidance: dependent on the suppressor and muzzle-device combinationMounting compatibility: Comstock, Rearden and other common Plan-B-pattern muzzle devicesFitment and Installation GuidanceAdds about 0.4 in more blast-chamber space than a standard LPA; the 1.08 in rear section is designed to tuck beneath most handguards. Before attaching any suppressor, verify bullet stability and confirm that the muzzle device, adapter and suppressor are concentric. Use an appropriate alignment rod and follow the current installation instructions supplied by Comstock Armory. Some suppressor manufacturers limit warranty coverage when aftermarket mounts or muzzle devices are used, so review the suppressor manufacturer's warranty and compatibility requirements before installation.Listing details, manufacturer specifications, package contents, price and inventory can change. Confirm the current product page before ordering. For additional purchasing information, review ARMSAGORA's retailers's suppressor buying guide and store policies.Build a Compatible Comstock Mounting SystemFor a related component, compare the Comstock HPA Steel HUB Adapter. Matching the correct barrel thread, muzzle-device bore, suppressor rear thread and blast-chamber depth is essential. You can also browse the manufacturers available at ARMSAGORA's retailers for additional suppressor accessories, muzzle devices and host components.Get yours today at ARMSAGORA's retailers. Choose the correct configuration, verify your complete system and purchase the Comstock HPA Titanium HUB Adapter from a trusted online retailer.Frequently Asked QuestionsWhat mounting system is the HPA-B-TI designed for?It is designed around the Plan-B-pattern ecosystem and the specific 1.375-24 HUB/Bravo interface listed above. Compatibility depends on the complete suppressor, adapter, muzzle-device and barrel configuration.Is this adapter a suppressor?No. It is a mounting adapter for a compatible suppressor. The suppressor, muzzle device and any required tools are sold separately unless the listing states otherwise.How do I confirm suppressor fitment before firing?Check every thread specification, available blast-chamber depth, muzzle-device length and caliber rating. After installation, verify alignment with a proper alignment rod and follow all firearm, ammunition and suppressor manufacturer instructions.Use only on a compatible firearm and suppressor system. Installation should be performed by a qualified person when the user is not fully familiar with muzzle-device or suppressor-mount installation.


