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Best .350 Legend Uppers, Complete Rifles, Barrels of 2023

We take a deep dive into .350 Legend to talk about what it is and give you some recommendations for complete rifles, uppers, and barrels.

    Ye olde .350 Legend really captured the year 2019.

    I remember seeing it everywhere at SHOT and sort of giving it the cold shoulder. I have my hunting rifle and preferred caliber. Why would another interest me?

    350 Legend Winchester
    Cartridges come and go, but the .350 Legend looks like it is here to stay. (Photo: Big Game Hunting Blog)

    In time I’ve warmed up to the .350 Legend and have begun to appreciate the cartridge for what it is and what it can do.

    I also recognize that it wasn’t made for people in my situation, yet I can still find it useful.

    So what is .350 Legend? Why should you be interested? What should you look at if you want to get into it?

    Ammo availability and gun variety for the .350 Legend seem to be growing by the day. (Photo: Ultimate Reloader)

    Good news! We are going to cover some of the best complete rifles, uppers, and barrels in .350 Legend to try and help you get pointed in the right direction.

    Summary of Our Top Picks

    1. Best .350 Legend AR

      CMMG Resolute Mk4 300 .350 Legend

      Slick, accurate, and light, this AR has all the upgraded goodies straight from the factory.

    2. Best Budget .350 Legend Rifle

      Ruger American Ranch .350 Legend

      Coming in around $500, this rifle is hard to beat for the money and comes packed with great features.

    3. Editor's Pick

      Aero Precision M4E1 20" .350 Legend upper

      Aero Precision makes amazing parts at fair prices. This is a great place to start if you already have an AR-15 lower.

    4. Best Budget Barrel

      Ballistic Advantage .350 Legend barrels

      These barrels offer great performance at an affordable price.

    5. Best High-End Barrel

      Shaw .350 Legend barrels

      These barrels are known for their extreme tolerances and accuracy.

    Table of Contents


    What is .350 Legend?

    The .350 Legend, aka 9x43mm, is a .35 caliber straight-walled cartridge designed by Winchester Repeating Arms.

    From left to right: .223 Remington, .350 Legend, .450 Bushmaster. (Photo: Big Game Hunting Blog)

    Certain states only allow rifle hunting with straight-walled cartridges, which prohibits the use of many popular bottlenecked cartridges.

    Winchester set out to create a new, fast, mild recoiling intermediate rifle round for these states.

    The design emphasized sharing some characteristics with the .223 Remington so it could be used in a standard AR-15 platform with little to no modification and thus capitalize on the most popular platform around.

    The .350 Legend uses the same rim diameter as the .223, making it easily adaptable to the AR platform.(Photo: Big Game Hunting Blog)

    Shooters can choose between projectiles as light as 125 grains and as heavy as 280 grains (very suppressor friendly). Various projectile types exist, with a large portion of the bullets geared toward hunting medium game.

    The .350 Legend delivers great performance for those that want a bit more range and less recoil than the .450 Bushmaster. (Photo: Rifle Shooter)

    It’s perfect for deer, hogs, and coyotes. Recoil is mild and pleasant, especially from a semi-auto. Feeding is reliable, and finding state-appropriate hunting magazines is easy.

    Although they do require a different follower and a bit of feed lip change over .223 Rem, .350 Legend mags are fairly affordable, and they work extremely well. (Photo: American Rifleman)

    The round has enjoyed great popularity, partly due to its adaptability to the AR-15 platform.

    However, it also found a home in bolt action and single-shot rifles, and Smith & Wesson even makes a .350 Legend revolver.

    The Best .350 Legend Guns

    1. CMMG Resolute Mk4

    The CMMG Resolute Mk4 series are carbine-style rifles available in various calibers. As you’d expect, this includes the .350 Legend.

    This little carbine features an entire accessory suite of the CMMG ZEROED furniture and parts and pieces.

    (Credit: Mark Fingar Photo)

    It all comes together to form a very modern design. Shooters get an ambidextrous safety and magazine release and an enlarged bolt catch. The weapon features a somewhat minimalist M-LOK handguard that gives the gun a good balance.

    Accuracy is very good, and the stock trigger is rather nice. A 9mm compensator at the end helps drive recoil down to levels below that of a .243 Winchester.

    Best .350 Legend AR
    at Kygunco

    Prices accurate at time of writing

    Prices accurate at time of writing

    Available Coupons

    The famed Rip Stock allows you to instantly set the LOP and rip the stock to that length every time after. It is a nice “set it and forget it” option.

    CMMG sells the Resolute .350 Legend with mag capacities from five to twenty rounds, and it’s available in several colors.

    2. Ruger American Ranch

    While the .350 Legend was made with the AR platform in mind, you’d be crazy to think that’s your only option.

    Ruger produces their affordable but quality American Ranch series in .350 Legend. This is not only a great rifle but an affordable way to get into the .350 Legend cartridge.

    (Photo: Widener’s)

    The Ruger American Ranch rifles feature 16.38-inch barrels and weigh just a hair over six pounds. Shooters get the option to use AR magazines as well.

    These come standard with an integrated Picatinny scope base and the Ruger Marksman Adjustable Trigger.

    Best Budget .350 Legend Rifle
    at GrabAGun

    Prices accurate at time of writing

    Prices accurate at time of writing

    Available Coupons

    Bolt actions aren’t as quick as semi-autos, but their accuracy is tough to beat for the money. All in all, you get a rifle that is accurate, light, adaptable, and easy to use at half the price of the nicer AR variants.

    Heck, the barrel is even threaded and suppressor ready.

    If you want to get into .350 Legend on a budget, and if you don’t mind a manual action, this is the way to go.

    Take a look at our full review of the Ruger American Ranch!

    3. Smith & Wesson Model 350

    I was a bit shocked to see Smith & Wesson introduce a rifle-caliber revolver with the Model 350.

    I assumed it would be a beast that recoiled hard and was generally unpleasant to shoot. I was surprised to find a massive but rather mild shooting revolver.

    (Photo: Gunsweek)

    If you can shoot a .44 Magnum, you can shoot the Model 350.

    A ported barrel certainly helps, as does the massive X-Frame. The gun even held seven rounds! You do need moon clips for extraction, but that’s not a deal breaker.

    The gun features a 7.5-inch barrel and a rear adjustable sight. A long sight radius makes it relatively easy to shoot accurately. Hitting medium game within 50 yards wouldn’t be too tough — but replace the rear sight with a red dot, and you’ll be cooking with gas.

    at Gunprime

    Prices accurate at time of writing

    Prices accurate at time of writing

    Available Coupons

    As someone who wants to get back into handgun hunting, I can’t help but be attracted to a revolver that can share my rifle rounds.

    What do you think of the Smith & Wesson Model 350? Rate it below!

    Readers' Ratings

    5.00/5 (157)

    Your Rating?

    Best .350 Legend Uppers

    One of the joys of the AR platform is its modularity. You can often remove the upper and swap it out to change calibers.

    The same rings true with the .350 Legend. If you already have your favorite lower, why not just get a new upper and save some scratch?

    4. Aero Precision M4E1 20-Inch

    The .350 Legend does well from a 16-inch barrel, which allows you to keep your rifle nice and short.

    However, it can do a little better from a 20-inch barrel. You can see at least a 100 FPS gain; a little extra velocity never hurts. You also get the smooth shooting full-length rifle gas system.

    While 16-inch barrels are by far the most common for .350 Legend, having longer options is always nice.

    The Aero M4E1 uppers feature a free-floating, lightweight Atlas One M-LOK handguard. It’s a minimalist design that makes it balance well with the 20-inch barrel. The M4E1 upper features M4 feed ramps, and while it may look billet, rest assured, it’s a forged upper.

    Luckily, Aero dropped the lame government profile barrel in favor of a solid DMR profile that’s a bit more consistent. The barrel is made from simple 4150 CrMoV steel, and its HP and MPI tested.

    Available Coupons

    Overall, Aero makes high-quality goods at a great price point, and this upper aligns with that philosophy.

    5. Shaw Barrels .350 Legend Upper

    Shaw Barrels produces .350 legend uppers that are custom-built for clients. Customers can select from a wide variety of options when ordering an upper.

    Shaw provides everything you need to slap an upper on your existing lower and go.

    Rifle uppers include 16 and 18-inch barrel options, the ability to choose a barrel finish, and even fluting. You can choose from different handguard lengths, magazine capacities, cerakote options, and more.  

    The barrels are rigid HBAR profiles made from stainless steel for exacting accuracy. Shaw heat treats the carrier and bolt, and the uppers are designed to work with standard carbine buffers.

    The ability to pick and choose what you want from your rifle without the full custom price tag is nice. They aren’t the cheapest but won’t break the bank either.

    at Shaw Barrels

    Prices accurate at time of writing

    Prices accurate at time of writing

    Available Coupons

    Best .350 Legend Barrels

    Maybe you just want to build your own rifle from the ground up. Most of the standard AR parts work with the .350 Legend, but with a .35 caliber projectile, you’ll need the right barrel. Luckily, plenty of companies have heard the call and are producing high-quality .350 Legend barrels for your next build.

    6. Ballistic Advantage

    Ballistic Advantage offers shooters 16, 18, and 20-inch .350 Legend barrels.

    Ballistic Advantage Hanson Barrel
    Ballistic Advantage Hanson Barrel

    Barrel profiles include the 16-inch Hanson, the 20-inch DMR, and the 18-inch SPR. Each is a quality option for shooters offering distinct size, weight, and velocity advantages.

    The Ballistic Advantage barrels are made from 4150 Chrome Moly Vanadium steel and use a QPQ finish. These barrels also feature a nickel boron-coated extra wide feed ramp extension.

    Best Budget Barrel
    at Ballistic Advantage

    Prices accurate at time of writing

    Prices accurate at time of writing

    Available Coupons

    Best of all, they won’t empty your wallet.

    7. Faxon Firearms

    Faxon produces three different .350 Legend barrels: a 20-inch barrel, a standard 16-inch, and an SBR/pistol-ready 12.5-inch option.

    Faxon 16 Gunner Barrel
    Faxon 16″ Gunner Barrel

    Shooters get a solid performance from short and long barrels with the .350 Legend, so there is no reason to shy away from a shorty build if you are considering one.

    Faxon Firearms makes their barrels from 4150 CMV and use button rifling. The Gunner profile helps transfer weight rearward to balance the guns better; It’s likely most appreciated on guns with 18 to 20-inch barrels.

    at OpticsPlanet

    Prices accurate at time of writing

    Prices accurate at time of writing

    Available Coupons

    These barrels sit in a nice and comfy middle ground price-wise.

    Check out our full review of the Faxon .350 Legend barrel!

    8. Shaw Barrels

    Shaw Barrels produces a line of HBAR .350 Legend barrels that are really second to none.

    Shaw helical fluted HBAR .350 Legend barrel.

    These stainless steel barrels come in 16 and 18-inch varieties and can come unfluted or fluted. Heck, you can even pick multiple fluting types.

    Shaw is all about options. The barrels are some of the best on the market and will help you achieve consistent precision.

    Best High-End Barrel
    at Shaw Barrels

    Prices accurate at time of writing

    Prices accurate at time of writing

    Available Coupons

    They aren’t cheap, but they will last near forever and provide outstanding accuracy. If you need to punch out vitals on medium game at distance, then there is no better option.

    Final Thoughts

    New AR cartridges pop up frequently, brag about how great they are, then disappear from whence they came.

    (Photo: Lynx Defense)

    The .350 Legend is a bit different. It’s not aiming to unseat the 5.56 but rather complement it as an intermediate straight-walled cartridge.

    It’s a purpose-built hunting cartridge that packs a nice punch into a platform we all know and love.

    Is the .350 Legend for you? Let us know what you think below! Looking for something a bit shorter or quieter? Check out our article on the 7 Best .300 Blackout AR Pistols & Rifles!

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