The Battle of Wanat Photo Credit: CNN.com U.S. Naval Institute, Kirk Ross, 2010.
Harsh environments and propellant gas are leading to malfunctions in the M4. Photo Credit: Military.com
Direct Impingement Systems allow propellant gasses to blow back into the receiver and solidify. Video Credit: Calguns.net Photo Credit: www.cleveland.com Eugene Stoner’s Patent for the direct impingement system.
The M-4 vs. Competition Under Sandstorm Conditions: “The Army’s M-4 Carbine: Background and Issues for Congress”, Fieckert.
CLP Attracts and Retains Dust Photo Credit: Otistec.com