American Precision Arms Gen 2 Fat Bastard Self Timing Brake 338 Cal 5/8″-24 Stainless Steel Muzzle Brake

The American Precision Arms Gen 2 Fat Bastard Self Timing Brake is a stainless steel muzzle brake chambered for 338 caliber rifles, threaded at 5/8"-24 tpi. It measures 3.30 inches in overall length with a 1.115-inch diameter.

The Gen 2 design incorporates a separate timing nut, allowing the brake to be installed at home without crush washers or peel washers. According to American Precision Arms, installation takes approximately 30 seconds. The brake is precision machined from high-grade stainless steel and is sized for the larger barrel profiles typically associated with cartridges such as the 338 Lapua.

Key Features

• Caliber: 338
• Thread Pitch: 5/8"-24 tpi
• Overall Length: 3.30"
• Diameter: 1.115"
• Material: High-grade stainless steel
• Gen 2 separate timing nut design — no crush washers or peel washers required
• Intended for larger barrel profiles

ICB Firearms carries the American Precision Arms Gen 2 Fat Bastard brake with fast nationwide shipping and local pickup available in Saint Clair Shores, Michigan.