JK Armament Bald Eagle 12GA Over the Barrel Muzzle Device (OBMD) 7/8 x 32 TPI XL Black JK-MD-HDBE12-7/8X32-XL UPC 850038425937
Product Description
The JK Armament Bald Eagle 12GA Over the Barrel Muzzle Device (OBMD) XL (JK-MD-HDBE12-7/8X32-XL) is a specialized 12-gauge shotgun muzzle brake and quick-detach suppressor mounting taper interface. Designed to thread directly onto barrels outfitted with Remington/Rem Choke style 7/8x32 TPI external adapter threads, the OBMD system serves as both a high-efficiency stand-alone recoil compensator and the primary quick-attach mounting hub for JK 195 SG 12-gauge shotgun suppressor series.
Featuring an Over the Barrel (OBM) sleeve geometry, the XL variant telescopically overlaps a section of the host barrel, minimizing added overall weapon length while maximizing internal gas expansion volume. The multi-port radial brake geometry directs expanding high-pressure propellant gases outward and upward to significantly mitigate 12-gauge felt recoil impulse, muzzle rise, and felt shoulder fatigue during rapid slug or buckshot strings.
Precision CNC-machined from high-strength alloy steel and finished in a durable, heat-resistant black nitride coating, the Bald Eagle OBMD resists extreme thermal cycles, lead/plastic wad fouling, and harsh environmental conditions. The external taper mount surface provides a gas-tight seal and repeatable alignment for silencer attachment, protecting the primary choke threads from carbon seizure and thread degradation.
*Armorer Bench Notes & Real-World Staging Guidance:*
Fitment Matrix: Direct thread fitment for 12-gauge shotgun barrels or choke adapters featuring 7/8x32 TPI external threads. Serves as a quick-detach mounting host for JK Armament JK 195 SG series 12GA suppressors.
- Verify the firearm is completely clear and uncocked with the chamber empty. Thoroughly clean the host barrel's external 7/8x32 threads and shoulder face.
- Apply high-temperature anti-seize or threadlocker (Rocksett recommended for permanent suppressor staging) to clean, degreased barrel threads.
- Thread the Bald Eagle OBMD onto the barrel, ensuring the internal over-the-barrel sleeve slides cleanly over the outer diameter of the barrel without binding.
- Torque the muzzle device securely to 25–30 ft-lbs using the proper spanner/wrench interface; allow anti-seize or threadlocker to cure completely before attaching the JK 195 SG suppressor.
Key Features
- Over the Barrel (OBM) XL Design: Overlaps the host barrel to minimize overall length addition while providing robust structural support.
- 7/8x32 TPI Thread Pitch: Direct thread interface designed for compatible 12-gauge shotgun barrels and choke thread adapters.
- JK 195 SG Suppressor QD Host: Serves as a taper-mount quick-detach interface for JK Armament 12-gauge silencers.
- Radial Recoil Compensation: Precision ports direct gas expansion to dramatically reduce 12-gauge recoil and muzzle jump.
- Heavy-Duty Nitride Coating: Black nitride surface treatment delivers exceptional corrosion resistance and hardness against plastic wad buildup.
Product Specifications
- Brand: JK Armament
- Model/Series: Bald Eagle 12GA Over the Barrel Muzzle Device (OBMD) XL
- MPN / SKU: JK-MD-HDBE12-7/8X32-XL
- UPC: 850038425937
- Caliber: 12 Gauge
- Thread Pitch: 7/8x32 TPI
- Platform Fitment: 12GA Shotgun Barrels / JK 195 SG Suppressors
- Material: Alloy Steel
- Finish/Color: Matte Black Nitride
- Country of Origin: United States
