North Reach MFG Whisper Pickle 556K 5.5-Inch Black Cerakote Stainless Steel Rifle Suppressor with 1/2x28 Direct Thread and 1-3/8x24 Bravo HUB Threads

North Reach MFG Whisper Pickle 556K 5.5-Inch Black Cerakote Stainless Steel Rifle Suppressor, 1-2x28 Direct Thread and 1-3-8x24 Bravo HUB Threads

This is the North Reach MFG Whisper Pickle 556K, a compact 5.5-inch rifle suppressor built from fully welded cold rolled 300 series stainless steel with a black Cerakote finish. The suppressor is chambered for .223 Remington and 5.56 NATO and is rated for cartridges up to 6mm, making it a capable choice across multiple AR-15 platform chamberings. A 1-2x28 direct thread adapter is included, and dual 1-3-8x24 Bravo HUB threads on both the front and rear of the suppressor open the door to the full Bravo pattern accessory ecosystem. The 6-baffle stack with step radial and 40 degree baffles delivers high sound suppression with enhanced recoil reduction and a low back pressure design, and the fully welded stainless construction is full-auto rated for 150 rounds of continuous fire with no minimum barrel length restrictions. At 5.5 inches and 13 oz the 556K is the compact sibling to the full-length Whisper Pickle 556, bringing the same Bravo HUB ecosystem and fully welded stainless construction in a shorter and lighter package.

Key Features

• .223 Remington and 5.56 NATO, rated for cartridges up to 6mm
• 5.5-inch overall length, 1.5-inch diameter, 13 oz
• Fully welded cold rolled 300 series stainless steel construction, black Cerakote finish
• 6-baffle stack with step radial and 40 degree baffles
• Low back pressure design
• High sound suppression with enhanced recoil reduction
• Full-auto rated, 150 rounds continuous fire
• No minimum barrel length restrictions
• 1-2x28 direct thread adapter included
• Dual 1-3-8x24 Bravo HUB threads on front and rear
• Compatible with Bravo pattern flash hider and muzzle brake end caps
• Excellent corrosion and pitting resistance
• Compatible with Bravo and HUB pattern accessories
• Includes suppressor, 1-2x28 direct thread adapter, owner's manual via QR code, and sticker

Perfect For

• AR-15 platform owners sourcing a compact full-auto rated rifle suppressor for .223 and 5.56 NATO builds
• Shooters who want entry into the Bravo HUB pattern accessory ecosystem in a shorter and lighter suppressor profile
• Builders running shorter barrel setups or pistol-length platforms who want a purpose-built compact suppressor with no minimum barrel length restrictions

Construction and Durability

The Whisper Pickle 556K is built from fully welded cold rolled 300 series stainless steel, a material choice that brings excellent corrosion and pitting resistance to the suppressor body and is selected for its ductility, which resists cracking at weld points and blast chambers under sustained fire. The fully welded construction eliminates serviceable baffles by design, prioritizing long-term structural integrity over user-serviceable parts. The black Cerakote finish over the stainless steel body adds a durable and consistent exterior finish across the full 5.5-inch length and 1.5-inch diameter profile of the suppressor. At 13 oz the 556K is a notably light suppressor for a fully welded stainless rifle unit at this caliber rating, making it a practical choice for builds where overall weight and balance are a consideration.

Baffle System and Sound Performance

The 6-baffle stack combines step radial baffles and 40 degree baffles in a single suppressor, addressing gas management across the baffle stack to maximize sound reduction and enhance recoil reduction at the muzzle end within the compact 5.5-inch body. The low back pressure design is a specific engineering characteristic of the 556K that manages gas blowback toward the shooter, a meaningful consideration on shorter barrel and pistol-length platforms where back pressure is more pronounced. The full-auto rating at 150 rounds of continuous fire reflects the thermal and structural capability of the fully welded stainless construction under sustained use.

Mounting System and Bravo Ecosystem

The included 1-2x28 direct thread adapter provides out-of-the-box compatibility with standard AR-15 platform barrels threaded at 1-2x28, the most common thread pitch for .223 and 5.56 NATO builds. The dual 1-3-8x24 Bravo HUB threads on both the front and rear of the suppressor are the defining modular feature of this unit, giving the builder access to the Bravo pattern accessory ecosystem including compatible flash hider and muzzle brake end caps. The front and rear Bravo HUB threads make the suppressor compatible with Bravo and HUB pattern mounts and accessories at both ends, adding flexibility for mount configurations and end cap options beyond the included direct thread adapter. There is no minimum barrel length restriction on this suppressor.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. May Dropship from Davidson Defense. Verify suppressor compatibility with your specific platform and barrel threading before use. Inspect suppressor and ensure secure attachment prior to each use. Lawful use only.