WHAT DOES DIAMONDBACK DB15 CHARGING HANDLES MEAN?

Skylar I will likely be contacting as soon as I get outside of the field to buy a single myself. Extremely amazed with each of the reviews I have read through. Any military services low cost. Otherwise I am good with it the price is great.I shifted the sight photograph up right up until the dots lined up with the center with the X-ring. This time t