This guide explains how to legally configure a rifle with a barrel shorter than 16 inches by permanently attaching a muzzle device, such as a suppressor host, using the 'pin and weld' method. This technique ensures the overall barrel length meets the 16-inch minimum requirement set by the ATF, thereby avoiding classification as a Short-Barreled Rifle (SBR) and the associated NFA regulations. The PSA Sabre rifle with a 14.5-inch barrel and a pinned and welded JMAC Customs muzzle device serves as a practical example.
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