Do It All Rifle Griffin MK2...BUT Something Happened.
This video details the process of diagnosing and rectifying severe overgassing issues in a 14.5-inch AR-15, specifically the Griffin Armament MK2. The presenter, drawing on experience from building numerous rifles, identifies an oversized gas port as the primary culprit after experiencing ejection problems, cycling failures, and accelerated wear. The guide includes using pin gauges to measure the gas port and recommends replacing the barrel if the port is found to be too large, emphasizing the importance of correct gas system tuning for optimal rifle performance.












