The Iver Johnson 1911 Threaded Barrel (brand part number 1911TBBL45C) is a 5-inch, .45 ACP replacement barrel built for Commander-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 Commander 1911 without a full custom build.

Key Specifications

• Chambered in .45 ACP.
• Built for Commander-size 1911 pistols.
• Measures 5 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 Commander-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? Commander-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 Commander Threaded Barrel, 5 Inch, .45 ACP

Add suppressor-ready threading to your Commander 1911. Order it from our Iver Johnson lineup, part of our gun parts and accessories selection, at our Lubbock, Texas gun shop for fast, direct shipping.