Iver Johnson 1911 Government Threaded Barrel, 5.75 Inch, 10mm

The Iver Johnson 1911 Threaded Barrel (brand part number IJ1911GTBBL10) is a 5.75-inch, 10mm replacement barrel built for Government-size 1911 pistols, finished in black oxide and threaded .578×28 TPI (3/8 inch) for a suppressor or compensator. Rifled with a 1:16-inch twist across 6 lands and grooves, it ships with a thread protector cap and does not include the link or pin, so some fitting may be required for a proper installation. It’s a straightforward way to add a threaded barrel to a Government 1911 without a full custom build.

Key Specifications

• Chambered in 10mm.
• Built for Government-size 1911 pistols.
• Measures 5.75 inches.
• Threaded .578×28 TPI (3/8 inch).
• Rifled with a 1:16-inch twist across 6 lands and grooves.
• Finished in black oxide.
• Includes a thread protector cap.
• Does not include the link or pin; some fitting may be required.
• Sold as a drop-in replacement barrel for Government-size pistols.

Frequently Asked Questions

Does this include the link and pin? No, it does not include the link or pin, and some fitting may be required.

What size 1911 does this fit? Government-size 1911 pistols.

What thread pattern does it use? .578×28 TPI (3/8 inch), and it ships with a thread protector cap.

Buy the Iver Johnson 1911 Government Threaded Barrel, 5.75 Inch, 10mm

Order this barrel from our Iver Johnson lineup, part of our 1911 barrels selection, from our Lubbock, Texas gun shop as soon as it’s ready to ship.