If you already have a factory assembled lower that fits your style, then you're good to go. Using one lower allows shooters to stick with a set of controls and adjustments they’re familiar with in all the calibers they like.

If you're considering a factory assembled AR in the $800 to $1,500 price range, then complete compatible uppers can be found for anywhere from $300 to $900 depending on the desired caliber and features.įor the sake of repeatable operator performance, or consistency, it's helpful to practice with the same trigger pull and stock configuration all of the time. What advantages are there to swapping out AR-15 uppers instead of purchasing a complete rifle in the caliber you want? The three “C”s that come to mind include cost, consistency and customization. Here’s a closer look at how to make the most of a single lower and three quality uppers that span the small, medium and big-bore cartridge options for the AR platform. The AR-15's split personality allows a single lower assembly that has a standard size lower receiver to be connected to different uppers chambered in a variety of calibers. A serial numbered lower receiver hosts the trigger group, buffer assembly, shoulder stock and pistol grip. The bottom half, or “lower,” contains all of the components needed to fire an AR-15. All of the parts that determine the cartridge a particular rifle can fire are found in the top half of an AR-15, which is more commonly known as the “upper.” The upper includes the barrel, handguard, upper receiver, charging handle and bolt carrier group (BCG). This is because the AR platform has the uncommon ability to split into two distinctive and fully self-contained halves.

The purchase of a good AR-15 is a more auspicious occasion than some new gun owners might realize.

Free float rail ar15 dan