US12474133 - Forend kit and firearm comprising components of the kit
A forend kit or firearm comprising same may include a forend and a gas tube. The forend has a mounting body and a hand-gripping body extending from the mounting body. A first portion of the gas tube extends from a first end of the gas tube to a central portion of the gas tube and a second portion of the gas tube extends from a second end of the gas tube to the central portion. The central portion includes an arcuate segment vertically offsetting the first portion of the gas tube from the second portion of the gas tube (e.g., a 180 degree curvature). The first and second portions of the gas tube may extend parallel to each other. A discharge gas passage of the gas block and/or the barrel may include a circumferential portion for allowing angular clocking between the gas block and the barrel.