Having the ability to build an AR15 completely or upgrade nearly any piece on an existing one is one of the pirmary reasons why this style of firearm is so popular, and to help you with either goal, XTS brings their expertise to the market. We have tons of XTS Gun Parts, XTS AR15 Parts, XTS Rifle Parts and more right here on OpticsPlanet so that you can swap out your parts and build the rifle that you want the most. From bolt carrier groups and stocks to laser sights, flashlights, foregrips, and more, XTS makes all of their parts with functionality and durability in mind. When you use XTS parts in your buidl, you can depend on them when you need it most.
Can Any AR-15 Upper Go On Any Lower?
As long as the lower receiver you are planning to use matches the caliber of your AR15 upper receiver, the two halves of the rifle should fit together. However, manufacturers make their parts to different specifications, so if you get an upper receiver from one company and a lower receiver from another, you may have some trouble getting them to fit. That being said, if the upper receiver is Mil-Spec, like the complete upper receivers from XTS, then you should be able to easily connect it to a matching mil-spec lower.
How Often Should I Replace Parts on an AR15?
There is no defined guide when you should replace parts, especially if you use parts from a lot of different manufacturers in your build. One large benefit of AR15 rifles is that they are made to be durable, so the individual parts are robust. However, you should inspect each parts carefully every few thousand rounds to look for cracks or damage, as this lets you replace things as needed. If you use high-quality components, like those from XTS you don't have to worry about replacing anything frequently.
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