Okay! Soo I've got this idea about a magazine/mag loader. These exist in real life, soo It wont be unrealistic. There is picture of real magazine loader for 5.45x39 and 5.56x45 ammo below.
I believe these should be implemented into the game aside from the loading skill, it should be balanced in the following way: Make it available at Mechanic tier 3 or 4. It would make the Mechanic more useful. It should be REALLY expensive to purchase. The item should wear and tear fast, and the repair cost should also be HIGH or if you dont repair it, the item will not work.The size of the mag loader