SilencerCo AC1757 Threaded Barrel | Glock 23 | .40 S&W

The SilencerCo AC1757 is a threaded replacement barrel for the Glock 23 chambered in .40 Smith & Wesson. It is precision-machined from heat-treated 416R stainless steel and finished with a corrosion-resistant black nitride coating. The barrel is designed for use with a pistol silencer and includes a thread protector for storage and transport.

Common applications include suppressed range work and duty/service sidearm configurations where a threaded barrel is required for mounting a muzzle device or suppressor piston.

Product Specifications

• The UPC for this product is 817272018370.
• The manufacturer part number is AC1757.
• The barrel is chambered for .40 S&W.
• This barrel is designed to fit the Glock 23.
• The barrel measures 4.5 inches in length.
• The barrel is machined from 416R stainless steel.
• The finish is a black nitride coating for corrosion resistance.
• The threaded pattern is 9/16×24 threads per inch.
• The rifling uses a 1:10″ RH twist rate.
• The bore type is rifled.
• This item includes a thread protector for the muzzle threads.
• The barrel feature is threaded for use with muzzle devices and suppressor pistons.
• The barrel type is described as 416R stainless steel.
• The product is listed as compatible with Gen3 and Gen4 Glock frames where specified.

Built to SilencerCo’s standards for durability and suppressor compatibility, the AC1757 provides a practical upgrade path for Glock 23 owners who need a threaded, service-grade barrel. Its combination of 416R stainless construction, nitride finish, and standard 9/16×24 threading makes it well suited for suppressed training sessions and service-oriented use where reliability and consistent accuracy matter.