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Comstock Armory HUB Low Profile Adapter Steel Plan-B Suppressor Adapter
The Comstock Armory HUB Low Profile Adapter (LPA) provides a compact, lightweight interface for attaching compatible Plan-B-pattern muzzle devices to suppressors using the standard 1.375-24 HUB/Bravo thread pattern. Constructed from high-strength 17-4 PH stainless steel and protected with a durable black nitride finish, the LPA delivers a rugged mounting solution while keeping added length to a minimum.
At just 1.6 ounces, the Comstock Armory LPA is designed to minimize the weight added to a suppressor while providing a secure interface for compatible Comstock, Rearden and other common Plan-B muzzle devices. The low-profile design adds only 0.3 inches of length, while the 1-1/16-inch wrench flats make installation and removal straightforward.
Ready to build your suppressor mounting system? Verify your suppressor's HUB compatibility and add the Comstock Armory HUB Low Profile Adapter to your cart at BattleHawk Armory.
Lightweight HUB Compatibility
The Comstock Armory LPA converts a suppressor's standard 1.375-24 HUB/Bravo mounting interface to a compatible Plan-B-pattern system. This allows compatible Plan-B muzzle devices to provide a quick-attach interface while maintaining a compact overall configuration.
The 17-4 PH stainless steel construction provides high strength in a lightweight package, while the black nitride finish adds a durable surface treatment for repeated use. With only 0.3 inches of added length, the LPA keeps the suppressor mounting system streamlined.
Key Features and Specifications
- Model: HUB Low Profile Adapter (LPA)
- Interface: 1.375-24 HUB/Bravo
- Mounting Compatibility: Comstock, Rearden and other common Plan-B muzzle devices
- Material: 17-4 PH stainless steel
- Finish: Black nitride
- Weight: 1.6 oz
- Added Length: 0.3 in
- Installation Interface: 1-1/16 in wrench flats
- UPC: 850069580032
- SKU: LPA-B-SS
Fitment and Installation Guidance
The Comstock Armory HUB LPA is designed for suppressors equipped with the 1.375-24 HUB/Bravo thread pattern. Verify your suppressor's mounting interface and confirm compatibility with the intended Plan-B muzzle device before installation.
Before attaching any suppressor, always verify bullet stabilization and confirm that the muzzle device, adapter and suppressor are properly aligned. Use an appropriate alignment rod to verify concentricity and follow the current installation instructions supplied by Comstock Armory.
Some suppressor manufacturers may limit or exclude warranty coverage when aftermarket mounts or adapters are used. Review the suppressor manufacturer's compatibility and warranty requirements before installation.
Build a Compatible Comstock Mounting System
The HUB LPA is designed to work with compatible Plan-B-pattern muzzle devices, including Comstock and Rearden options. Pairing the correct HUB adapter with the appropriate muzzle device provides a compact mounting system while allowing quick attachment and removal of a compatible suppressor.
Always verify the suppressor's rear thread, muzzle-device interface, caliber compatibility and complete system fitment before installation.
Get yours today at BattleHawk Armory. Verify your suppressor uses the 1.375-24 HUB/Bravo interface and purchase the Comstock Armory HUB Low Profile Adapter from a trusted online retailer.
Frequently Asked Questions
What is the Comstock Armory HUB LPA used for?
The LPA adapts a suppressor with a standard 1.375-24 HUB/Bravo mounting interface for use with compatible Plan-B-pattern muzzle devices.
What suppressors is the LPA compatible with?
It is designed for suppressors using the 1.375-24 HUB/Bravo thread standard. Always confirm compatibility with the suppressor manufacturer before installation.
How much weight does the LPA add?
The steel LPA weighs just 1.6 ounces and adds approximately 0.3 inches of length.
What muzzle devices work with the LPA?
The adapter is compatible with Comstock, Rearden and other common Plan-B-pattern muzzle devices. Verify the complete system's specifications before use.
How do I confirm suppressor fitment before use?
Verify the suppressor's 1.375-24 HUB/Bravo interface, muzzle-device compatibility and caliber rating. Before attaching the suppressor, verify bullet stabilization and use an appropriate alignment rod to confirm the complete system is properly aligned.
Use only with a compatible suppressor, firearm and muzzle-device system. Installation should be performed by a qualified person when the user is not fully familiar with suppressor-mount installation.
Get the Comstock Armory HUB Low Profile Adapter at BattleHawk Armory!
| Manufacturer | Comstock Armory |
| UPC | 850069580032 |
| SKU | LPA-B-SS |
| Width | 2.3000 |
| Length | 3.9000 |
| Height | 0.8500 |
| Weight | 0.1000 |



FFL Required