350 Legend Uppers

350 Legend Upper: Hunting With an AR 15

If you are planning on hunting with your AR-15, you might be building a rifle from scratch. The 350 Legend AR upper receiver is a popular choice for this application, and with Mid State Firearms, it is entirely possible to find one that will fit your budget and needs.

If you are new to rifle building, we suggest using a 350 Legend complete upper assembly to make the process a bit easier. You must understand how every component of the 350 Legend AR upper works, including the advantages of using this caliber for hunting. Please read the following frequently asked questions to acquaint yourself with the 350 Legend Upper. 

FAQs

What is the 350 Legend, and what is it good for?

A .350 Legend upper has a cartridge that is great for hunters residing in states where ammo regulations are more strict, including restrictions on straight-wall ammunition. The diameter of the .350 Legend is .357 of an inch, and the length is about 2.26 inches. It has 20 percent more penetration than the .243 Winchester and has more energy compared to the 300 Blackout upper, making it a great choice for taking down game.

What do you need to shoot 350 Legend?

In order to fire the .350 Legend, you will need a new 350 Legend AR upper. This includes magazines and other parts. You will need to purchase a 350 Legend upper with BCG and a charging handle, as they are both essential parts.

Depending on the build you are planning, you may need a 350 Legend AR pistol upper. Alternatively, you may just need a 350 Legend AR15 upper. Either way, you can find one based on your preferred length. A 350 Legend pistol upper will be shorter than their regular 350 Legend upper receiver counterparts.

Can I use my AR15 lower with your 350 legend upper?

Yes. You can drop 350 Legend complete uppers on a 5.56 lower. It will create a unique system consisting of two calibers, but it will work.

Can I use standard AR mags with a 350 Legend upper?

A .350 Legend won’t be able to feed out of a standard AR mag (.223/5.56 magazine). Despite the fact that it can work with other standard AR parts, it will need a new magazine that will fit .350 Legend uppers. Otherwise, your shots won’t go off smoothly, and jams can occur.