Piston vs Gas Impingement AR-15
Once you have made the decision to purchase an AR-15 you may be wondering which of the two AR-15 operating systems to choose, either a gas piston system, or one with the direct impingement system (DI/DGI). There are pros and cons to both systems, and ultimately it becomes a matter of personal choice. The following … Read more “Piston vs Gas Impingement AR-15”
