SKU: PR103333
UPC: 843068103333
MPN: 103333
The Proof Research Barrel Blank CF .224 16.5" SND is a precision-engineered barrel blank designed for custom rifle builders and gunsmiths who demand match-grade accuracy and repeatability. This barrel blank serves as the foundation for precision rifle systems used in competitive shooting, law enforcement tactical applications, and long-range hunting.
Manufactured from high-quality steel, this 16.5-inch blank delivers the strength and thermal stability required for consistent shot-to-shot performance under sustained fire. The SND designation indicates a specific contour profile optimized for intermediate barrel length, offering a balance between velocity, handling characteristics, and rigid mechanics—critical factors that reduce harmonic vibration and vertical stringing common in poorly-designed systems.
This barrel blank is ideal for builders constructing AR-15 platforms, precision rifle builds, or custom tactical carbines requiring a proven, field-tested caliber and contour. Each blank is manufactured to specifications that facilitate superior accuracy potential when properly chambered and crowned by a competent gunsmith.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.