The JE Machine PS-MZ6 AR15/M4 223 Muzzle Brake is a compact, steel muzzle device designed to keep your rifle flatter and more controllable with every shot. Machined from durable 4140 steel and finished in a black manganese phosphate, it uses a six-port layout to redirect gas and help tame recoil and muzzle rise on AR-15 and M4 platforms chambered in 5.56x45mm NATO or .223 Remington.

This model’s short 1.75 inch length and 0.87 inch diameter make it an easy upgrade for range rifles, training carbines, or general-purpose AR builds where you want better control without adding excessive bulk. Threaded 1/2x28 to match standard AR-15 barrels, it installs on most 5.56 NATO rifles and is well suited for recreational shooting, drills, and practice sessions where fast follow-up shots matter. Built by JE Machine Tech, it reflects the brand’s focus on practical performance and solid machining.

Key Features:

• Manufacturer: JE Machine Tech
• Model: PS-MZ6 AR15/M4 223 Muzzle Brake
• Caliber: 5.56x45mm NATO / .223 Remington
• Finish Color: Black Manganese Phosphate
• Length: 1.75 in
• Diameter: 0.87 in
• Thread Pattern: 1/2x28
• Material: 4140 Steel
• Unique Features: Six-Port Design For Recoil And Muzzle Rise Reduction