LMT Defense Regulator Closed Tine Flash Hider 5.56 1/2"x28 Threads (Dead Air Xeno Compatible) - SKU: R-RCT1228556 - UPC: 850076573218
Product Description
The LMT (Lewis Machine & Tool) R-RCT1228556 Regulator Closed Tine Flash Hider is a rugged muzzle device designed specifically for 5.56mm / .223 caliber rifles with 1/2"x28 thread profiles. Featuring a closed-tine geometry, this flash hider suppresses muzzle flash and visual optical signatures without the ringing noise or prone dust kickup associated with open-tine designs.
Engineered to serve as a fast QD interface for Dead Air's Xeno Mount suppressor system, the Regulator series utilizes left-handed mounting threads. This inverse thread pitch eliminates the risk of accidentally backing the muzzle device off the barrel shoulder when detaching your suppressor after heavy firing schedules.
Precision CNC-machined from high-strength alloy steel and coated with a durable, heat-resistant black finish, the LMT R-RCT1228556 easily handles high thermal expansion, extreme pressure spikes, and rapid-fire wear on AR-15 carbines and precision rifles.
*Armorer Bench Notes & Real-World Staging Guidance:
Fitment Matrix: Fits barrels chambered in 5.56mm NATO / .223 Remington or smaller with standard 1/2"-28 thread pitch. Compatible with Dead Air Xeno Omni/Adapter suppressor mounts.
- Verify host firearm is completely clear, magazine removed, and chamber visually and physically confirmed empty.
- Clean barrel muzzle threads thoroughly to remove carbon fouling, dirt, and old threadlocker residue.
- Apply proper timing shims (if required for indexing) and high-temperature threadlocker (such as Rocksett) to 1/2"-28 barrel threads.
- Thread the R-RCT1228556 flash hider onto the barrel shoulder by hand to prevent cross-threading.
- Torque the muzzle device to 25–30 ft-lbs using an appropriate armorers wrench on the precision wrench flats, and verify bore clearance with an alignment rod prior to live-fire.
Key Features
- Closed-Tine Architecture: Mitigates muzzle flash and visual signature while preventing snagging on vegetation and tactical gear.
- Dead Air Xeno Compatibility: Interfaces directly with Dead Air Xeno Omni/Adapter suppressor mounts for quick QD attachment.
- Left-Handed Xeno Threads: Prevents accidental unthreading of the muzzle device from the barrel during suppressor removal.
- 1/2"x28 Thread Pitch: Standard mounting thread pattern for 5.56 NATO / .223 Rem rifle barrels.
- Precision Wrench Interface: Machined exterior flats allow accurate torque application and bench installation.
- Heat-Resistant Black Coating: Shielded against chemical solvents, extreme heat, and atmospheric corrosion.
Product Specifications
- Brand: LMT Defense (Lewis Machine & Tool)
- MPN: R-RCT1228556
- UPC: 850076573218
- Caliber Rating: 5.56mm NATO / .223 Rem
- Thread Pitch: 1/2"-28 TPI
- Mount Compatibility: Dead Air Xeno System
- Muzzle Style: Closed Tine Flash Hider
- Material: High-Grade Steel Alloy
- Finish: Heat-Resistant Black Coating
