Faxon Duty Series 9mm 3.1″ Threaded Barrel for M&P Shield

The Faxon Firearms Duty Series barrel is a drop-in replacement designed for the M&P Shield 3.1″ in 9mm Luger. Built from steel with a black nitride finish, this threaded barrel offers a durable service surface and a 1:10″ rate of twist for stabilized 9mm projectiles. Its drop-in design keeps installation straightforward for users seeking a factory-fit upgrade. The threaded profile accommodates commonly used muzzle devices when permitted by local law.

Key Specifications

• The manufacturer is Faxon Firearms.
• The model is Duty Series.
• The caliber is 9mm Luger.
• The barrel is specified to fit M&P Shield 3.1″.
• The barrel construction/finish is black nitride steel.
• The barrel is supplied as a threaded drop-in unit.
• The advertised rate of twist is 1:10″.
• The design is intended as a direct replacement barrel for factory fitment.

Whether you’re refreshing a carry pistol or replacing a worn factory barrel, this Faxon Duty Series barrel provides robust construction and straightforward installation. The black nitride finish and threaded profile make it a practical choice for owners seeking durable performance and the option to fit compatible muzzle devices where allowed, while preserving the compact handling of the M&P Shield 3.1″ platform.