ATI Outdoors AR-15 Muzzle Brake Jam Nut – 1/2×28 Thread, Steel Construction, Black Oxide (A.5.10.2255)

• Muzzle brake jam nut designed for securing muzzle devices on rifle barrels
• 1/2 by 28 thread pattern supports standard 223 and 556 barrel compatibility
• Heat treated steel construction ensures strength under repeated firing conditions
• CNC precision machined for consistent fit and secure installation alignment
• Black oxide finish provides corrosion resistance and long term durability
• Compatible with AR-15 platforms requiring properly indexed muzzle device installation

The ATI Outdoors AR-15 Muzzle Brake Jam Nut 1/2-28 Black Oxide is a jam nut designed for securing and indexing muzzle devices on AR-15 barrels.

The ATI Outdoors AR-15 Muzzle Brake Jam Nut features a 1/2″-28 thread pattern and is compatible with .223/5.56 rifle platforms. It is CNC precision machined from heat treated steel and finished with a black oxide coating for corrosion resistance. This component functions as a locking spacer to maintain alignment of muzzle brakes during installation. This product is used for assembly and adjustment in range use or firearm maintenance setups where a stable threaded interface is required. The ATI Outdoors AR-15 Muzzle Brake Jam Nut maintains consistent fitment through its threaded design and is categorized under muzzle device hardware for AR-platform rifles.