JK Armament 155 RPX 9 9mm Suppressor, Taper Mount and Bald Eagle Muzzle Device (1/2x28 TPI)

JK Armament 155 RPX 9 9mm Suppressor, Black

The JK Armament 155 RPX 9 combines a titanium blast baffle with a lightweight aluminum baffle stack in a modular 9mm suppressor. The eight-baffle system gives the shooter room to balance overall size, weight, and sound reduction for the chosen firearm.

The Black suppressor includes a taper mount and 1/2x28 Bald Eagle muzzle device, making compatible fixed-barrel 9mm firearms the starting application for the supplied mounting system. The 1.55-inch diameter keeps the body profile consistent across its approved modular configurations.

Choose the 155 RPX 9 9mm Suppressor, Black at BattleHawk Armory.

Titanium Where the Blast Arrives First

A Grade 5 titanium blast baffle occupies the first baffle position, followed by 7 7075 aluminum baffles. The hybrid construction places the stronger, heat-resistant titanium component at the blast end while using aluminum to limit overall weight. It is a considered material mix for an owner who values a manageable suppressor without treating every application as an all-steel duty cycle.

Configurable Length and Sound Reduction

The 8-baffle system supports approved shorter and longer configurations. Shortening the assembly reduces length and weight at the muzzle; retaining more baffles increases the available suppression volume. The modular components also provide service access. The best arrangement depends on the firearm, cartridge, and intended use, rather than the model name alone.

Included Mounting Components

The RPX 9 includes a taper mount and 1/2x28 Bald Eagle muzzle device. The Bald Eagle attaches to a compatible 1/2x28 barrel and provides the interface engaged by the suppressor's taper mount. The muzzle device and taper mount perform separate jobs; together they equip an appropriate fixed-barrel host for the suppressor.

End Cap and Mounting Flexibility

A flash-reducing end cap completes the suppressor. The 1.375x24 HUB rear interface supports compatible mounting options, subject to the required internal clearance and approved host application. A tilting-barrel pistol requires its own approved mounting arrangement; the included taper system should not be treated as a piston booster.

Cartridge-Specific Use Limits

The RPX supports approved 9mm and .300 Blackout applications, while its rifle ratings have separate sporting-use limits. For example, 5.56 NATO sporting use requires at least a 14.5-inch barrel, and .308 Winchester sporting use requires at least a 16-inch barrel. Those are cartridge-specific limits, not a blanket rifle rating.

Product Specifications

• Manufacturer: JK Armament
• Model: 155 RPX 9
• Caliber class: 9mm
• Color: Black
• Diameter: 1.55 inches
• Baffle count: 8
• Blast baffle: Grade 5 titanium
• Remaining baffles: 7 in 7075 aluminum
• Finish system: Hard anodize and Cerakote
• Rear interface: 1.375x24 HUB
• Included mounting components: taper mount and 1/2x28 Bald Eagle muzzle device
• End cap: flash-reducing
• Configurable length with mount: 3.3-8.7 inches
• Configurable weight: 3.6-11 ounces

Frequently Asked Questions

Which mounting components are included?

A taper mount and 1/2x28 Bald Eagle muzzle device is included.

Can the suppressor length be changed?

Yes. The RPX 9 uses a modular 8-baffle system with approved shorter and longer configurations.

Is it made entirely from titanium?

No. It combines one Grade 5 titanium blast baffle with 7 aluminum baffles to balance material strength and weight.

Does a caliber match guarantee firearm compatibility?

No. Barrel thread, mounting system, internal clearance, cartridge rating, barrel length, and intended firing schedule must all suit the complete setup.

Shop the 155 RPX 9 9mm Suppressor, Black at BattleHawk Armory.