The SiCo GDCH utilizes a unique design feature which incorporates the use of a commonly found "O" ring seal to prevent gases from escaping from the most prominent point of egress typical of both Mil-Spec and Aftermarket Charging Handles currently...
The SiCo GDCH utilizes a unique design feature which incorporates the use of a commonly found "O" ring seal to prevent gases from escaping from the most prominent point of egress typical of both Mil-Spec and Aftermarket Charging Handles currently...