WHAT DOES COLT 20 ROUND MAGAZINE MEAN?

Bore Affliction: The bore is shiny, the rifling is sharp. There is not any erosion inside the bore. The feed ramps are smooth and glossy. On this author’s impression the bore fees 9/ten.Precision shooting is another persuasive basis for the AR 15 20 inch upper, The main reason is balance: considerably less lateral movement below recoil implies th