The Ruger-57 threaded barrel kit (brand part no. 90739) is a genuine Ruger factory accessory for the Ruger-57 pistol in 5.7x28mm. The threaded stainless steel barrel accepts any 1/2-28 muzzle device, and Ruger says installation is quick and easy with no gunsmithing required. The kit includes a thread protector adapter and a wrench, and it is made in the USA. It turns a Ruger-57 into a pistol that can take a brake, compensator or suppressor.

Key Specifications

• The caliber is 5.7x28mm, matching the Ruger-57.
• The barrel length is 4.49 inches.
• The thread pattern is 1/2-28 and accepts any muzzle device with that thread.
• The material is stainless steel, for corrosion resistance.
• The kit includes a thread protector adapter to cover the threads.
• The kit includes a wrench for installation.
• The barrel is made in the USA as a factory-manufactured Ruger accessory.
• The kit is compatible with the Ruger-57 pistol.
• Installation needs no gunsmithing, according to Ruger.

Frequently Asked Questions

What pistol does it fit? It is compatible with the Ruger-57 pistol.

Do I need a gunsmith to install it? Ruger says installing the threaded barrel is quick and easy with no gunsmithing required.

What comes in the kit? The barrel, a thread protector adapter and a wrench.

Buy the Ruger-57 Threaded Barrel Kit, 5.7x28mm, 4.49-Inch, 1/2-28

A threaded barrel opens the Ruger-57 to muzzle devices. Order it from our Lubbock, Texas gun shop for fast shipping to your door, and see more handgun barrels.