Are you building your own AR-15 or AR-10, or are you buying an extra upper for your existing AR? In either case, you have a decision to make.
If you're buying from a company using 100 percent made in the USA parts it will typically cost you about $100 more to get a complete AR-15 upper assembly with BCG and charging handle, as opposed to getting an upper assembly without the BCG or charging handle. For an AR-10 upper assembly it's about $180 more. These amounts are based on a parkerized or nitride BCG.
A low mass BCG for an AR-15, not currently available for the AR-10, will at a minimum add another $20, and nickel boron will normally add at least $35 for the AR-15, and $40 to $60 for the AR-10. There are many more choices of BCG finishes with widely varying prices, too many to accurately do justice to prices here.
If you're building your own, does the company you're looking at use the exact BCG and charging handle that you're looking for, or do they have an upgrade path to get you what you need.
If you're buying an extra upper for your existing AR, do you prefer to keep each upper assembly complete with its own BCG and charging handle matched together, or do you intend to share the BCG and charging handle between upper assemblies. This does assume were talking about the same caliber on each upper.
These are some of the things to keep in mind if you're going to buy an AR-15 or AR-10 Complete Upper with BCG and Charging Handle.
We'll cover some of the reasons to buy without the BCG and charging handle in another category, as well as buying upper assemblies with imported hand guards and muzzle devices.