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When you're looking to build a reliable AR-15, you need to choose AR57. Specializing in making high-quality upper receivers for firearms chambers in 5.7x28mm This caliber is known for being fast, reliable, and hard-hitting, so it's the perfect choice for a unique AR-15 build. The AR-15 Upper Assembly from AR57 comes with all the parts and screws you need to complete your build if you have the lower, so you can take it to the range as soon as possible. However, they don't include the magazine, so make sure to pick up a new AR magazine to have plenty of firepower on hand.
How Accurate is an AR57 Upper?
Like all firearms, the accuracy of one depends on a lot of factors, including the ammunition you use, the distance you're shooting at, and the various parts inside. However, FN 5.7 ammo is known as an accurate and reliable caliber, so you can be confident with this choice. Additionally, since 5.7 ammunition is usually shot from a pistol, the extended barrel length of 16 inches in an AR57 upper receiver helps the bullet fly straighter when you're shooting, improving the overall accuracy.
Buy AR57 Uppers Online at OpticsPlanet
When you need great gear from AR57 at an even better price, choose OpticsPlanet! We even offer Free Shipping on most orders over $49 to help you save even more on your upgrades and essentials. Browse our current deals to discover even more ways to save on optics, ammo, and gun accessories to round out your build.
