AR-15 Complete Uppers 223 Wylde. What is 223 Wylde?
The 223 Wydle chamber is designed to safely and accurately fire either 223 or 5.56 marked ammunition. 5.56 marked uppers or rifles can safely shoot 223 marked ammo with a possible slight decrease in accuracy. Shooting 5.56 in a 223 Remington marked barrels can be dangerous to you and others due to high pressure issues. We have a company policy to never build rifles or upper that fire the 223 Remington ONLY. All our rifles and upper can safely fire 223 or 5.56 marked ammo from reputable manufacturers.