Want to play with a new caliber or easily switch between barrels? These awesome complete AR-15 uppers let you do just that--without spending a ton. Firearm Review is running down the best complete AR-15 uppers here.

Reloading on the go? You should have multiple magazines on hand for your AR-15. Learn which polymer & metal mags perform best in terms of functionality and reliability!

Want to get the most out of your AR-15? Give a piston-driven upper a try! We'll walk you through the best picks for every budget and tell you just what you need to know to kick your rifle build up a notch.

Don't want the hassle of getting an SBR, but want the versatility? Check out our top picks for AR-15 pistols, the easy alternative to a short-barreled rifle. Firearm Review is here to give you a rundown on these guns.

10mm handguns and offer a little more oomph than your standard 9mm. But which models are the best? We break down which 10mm pistols we recommend for range day!

Learn more about how you can have a hassle-free AR build with one f the best 80% lowers. Firearm Review is walking you through what you need to know about buying an 80% AR lower.