Are "Single Stamp" ARs still a good idea?
This video explores the concept and practicality of 'single stamp' AR-15 builds, where a suppressor is permanently attached to a short barrel to meet the 16-inch legal length requirement, avoiding NFA SBR registration. It delves into the technical aspects of fast twist barrels, like KAK Industry's 1:5 twist, discussing potential benefits for terminal ballistics and the risks of over-stabilization. While the single-stamp concept is niche, the review suggests modern integral suppressor systems are often superior to older direct-thread methods for such builds.









