Quick Tip: Why Your AR-15 Has a Dust Cover
This guide, drawing from expert instruction by Caleb from Brownells, details the AR-15 dust cover's function and proper usage. It clarifies that the spring-loaded cover protects the firearm's action from contaminants like 'moon dust' encountered in environments such as Afghanistan. The cover is designed to be closed during transport or storage in dirty conditions, not necessarily after every shot fired in combat. The video also briefly compares its design to the AK series.












