What's A Piston Gun Good For? Adams Arms
This video from The VSO Gun Channel reviews the Adams Arms complete AR-15 piston upper receiver, comparing it to traditional direct impingement (DI) systems. The instructor highlights the primary benefit of piston guns: running cleaner by venting hot gas away from the receiver. The review details the Adams Arms system's design, including its monolithic MLOK rail, adjustable gas block with a set screw for fine-tuning, and a robust piston rod mechanism. While praising its clean operation and solid construction, a minor critique is offered regarding the small size of the gas block's set screw.










