27" Chrome Steel Unrifled Barrel Blank .361" ID / 1.5" OD F430439 – Premium Gunsmithing Barrel Stock

The 27" Chrome Steel Unrifled Barrel Blank (Part Number F430439) is a high-quality, precision-machined barrel blank designed for professional gunsmiths, custom rifle builders, and serious hobbyists. Measuring 27 inches in length with a .361-inch inside diameter and a 1.5-inch outside diameter, this unrifled chrome steel blank provides an excellent foundation for creating custom barrels. Manufactured from durable chrome-moly steel, this barrel blank offers superior strength, excellent machinability, and the ability to be rifled to a wide variety of calibers and twist rates. Whether you are building a custom pistol-caliber carbine, a specialized rifle, or performing barrel work on existing firearms, this blank delivers the consistency and material quality required for professional results.

This unrifled barrel blank is ideal for gunsmiths who prefer to rifle their own barrels or for those looking to create unique, one-off custom firearms where standard factory barrels are not suitable.

Key Features of the 27" Chrome Steel Unrifled Barrel Blank

Why Choose the 27" Chrome Steel Unrifled Barrel Blank F430439?

When searching for a high-quality unrifled barrel blank for custom gunsmithing projects, the 27" Chrome Steel Unrifled Barrel Blank (Part Number F430439) stands out as a reliable and versatile option. Many gunsmiths and custom builders prefer starting with unrifled blanks because it allows them to select the exact rifling pattern, groove depth, and twist rate best suited for their specific application. The .361" bore diameter is particularly well-suited for a variety of pistol calibers and certain rifle applications, giving builders flexibility in their projects. The 1.5-inch outside diameter provides a substantial amount of material for contouring the barrel to the desired profile, whether it’s a lightweight sporter contour or a heavy bull barrel. Chrome steel offers an excellent balance of machinability and durability, making it easier to work with on a lathe while still providing the strength needed for high-pressure cartridges. The 27-inch length is ideal for many carbine and rifle builds, offering enough material for most standard barrel lengths while minimizing waste. This barrel blank is trusted by professional gunsmiths and custom rifle builders who demand consistent material quality and precise dimensions. Whether you are creating a custom pistol-caliber carbine, a specialized varmint rifle, or performing advanced barrel work, the F430439 provides the foundation needed for a successful build. Its combination of quality chrome steel, precise dimensions, and unrifled design makes it one of the best choices for serious gunsmithing and custom firearm projects.

• 27-inch length chrome steel barrel blank
• .361" inside diameter (bore)
• 1.5" outside diameter
• Unrifled for custom rifling applications
• High-quality chrome-moly steel construction
• Excellent machinability and strength
• Ideal for custom gunsmithing and barrel work
• Suitable for pistol caliber carbines and specialty builds
• Part Number: F430439

Technical Specifications – 27" Chrome Steel Unrifled Barrel Blank

The 27" Chrome Steel Unrifled Barrel Blank (Part Number F430439) is a precision-machined gunsmithing component featuring a .361-inch inside diameter and 1.5-inch outside diameter. Made from durable chrome steel, this 27-inch unrifled barrel blank provides an excellent foundation for custom rifle and carbine builds, allowing gunsmiths full control over rifling specifications and barrel contouring.