The Mossberg 500 shotgun is a great starter weapon if you’ve never used a Mossberg shotgun before. But there are a few differences between the Mossberg 500 and the Mossberg 590 and 590A1 that you should be aware of in case you want to upgrade at a later date. Now although each of the three shotguns (basic models) has a 20-inch barrel (you can get one with different lenght of the barrel), they don’t all have the same ammo capacity. The Mossberg 500 has an 8-round shell capacity while the 590 and 590A1 has a 9-round capacity. This extra round in the 590 and 590A1 can be attributed to a differently designed magazine tube and cap. Since the tube was designed to be about 2 ¾ inches longer, it is able to hold one more round than the magazine tube of a Mossberg 500.
The Mossberg 500 and 590 are both high-quality pump action shotguns which can shoot quickly and do a lot of damage to any target. However, some shooters like to have a special sighting device attached to their shotgun so they can have better accuracy while aiming at their target. One of the more popular sighting accessories for the Mossberg 500 and 590 is the TRUGLO Glo-Dot II Shotgun sight. This particular sight has a fiber optic rod that produces a very bright dot which can be seen clearly in the daytime, morning or evening. This rod aligns with the front sight bead to give you the perfect opportunity to aim at any target during the day or evening.