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On Sale!
16" 350 Legend Upper - SHAW Barrels Stainless HBAR - 15" MLOK Rail
READY TO SHIP
Was: $349.99Now: $299.99 -
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350 Legend Complete Uppers
The 350 Legend delivers straight-wall cartridge performance from the AR-15 platform, combining manageable recoil, useful hunting energy and broad appeal in states that allow straight-wall cartridges for deer hunting. A 350 Legend upper is an excellent choice for hunters who want a compact, familiar semi-automatic platform with more frontal area and terminal performance than standard .22-caliber AR cartridges.
Read More About Our 350 Legend Upper Assemblies
Straight-Wall Hunting Performance for the AR-15
Why Choose a 350 Legend Upper?
A Ballistic Barn 350 Legend upper gives AR-15 hunters a straight-wall cartridge option with manageable recoil, practical hunting energy and familiar semi-automatic handling. It is a strong choice for deer, hogs and similar game where lawful, especially in jurisdictions that permit straight-wall cartridges for hunting.
Built for Practical Short- to Medium-Range Hunting
The 350 Legend was developed to provide useful .35-caliber hunting performance from the AR-15 platform. Its straight-wall case, moderate recoil and compatibility with standard AR-15 bolt carrier groups make it an approachable option for hunters who want a lightweight, configurable rifle.
Straight-Wall Cartridge
Popular for hunting in jurisdictions that permit straight-wall rifle cartridges.
Manageable Recoil
Provides useful hunting performance without excessive recoil.
Standard AR-15 Bolt
Uses the common .223/5.56 bolt face with a cartridge-specific magazine.
Headspace Checked
Each complete upper is verified with Manson GO and NO-GO gauges.
Use Magazines Designed for 350 Legend
The 350 Legend uses a standard .223 Remington and 5.56 NATO bolt face, but the cartridge's straight-wall case requires magazines designed for 350 Legend. Cartridge-specific magazines help support reliable feeding and proper alignment.
Why Buy From Ballistic Barn?
Individually Headspace Checked
Built in Fredericksburg, Texas
Configurable Component Options
Inspected for Fit and Function
Ballistic Barn AR-15 uppers are assembled in-house using carefully selected components. Every complete upper is inspected for fit and function and individually checked for proper headspace using Manson GO and NO-GO gauges before shipping.
350 Legend Upper Specifications and Compatibility
| Feature | Specification | Why It Matters |
|---|---|---|
| Caliber | 350 Legend | Provides straight-wall .35-caliber hunting performance from the AR-15 platform. |
| Platform | AR-15 | Fits compatible standard-dimension AR-15 lower receivers. |
| Common Barrel Twist | 1:16 | A common twist rate for stabilizing widely available 350 Legend hunting bullets. |
| BCG Compatibility | Standard .223 / 5.56 NATO | No proprietary bolt face or caliber-specific carrier is required. |
| Gas System | Matched to barrel length | Correct gas-system selection supports dependable cycling and balanced operation. |
| Muzzle Thread | Typically 5/8x24 | Common threading for compatible .35-caliber muzzle devices and suppressor mounts; verify the individual barrel listing. |
| Magazine Compatibility | 350 Legend-specific AR-15 magazines | Cartridge-specific magazines support reliable feeding of the straight-wall case. |
| Primary Application | Deer, hog and medium-game hunting | Well suited to short- and medium-range hunting where straight-wall cartridges are permitted. |
350 Legend Upper FAQs
Does the 350 Legend upper come ready to use?
Every Ballistic Barn upper is fully assembled, inspected for fit and function, and checked for proper headspace using Manson GO and NO-GO gauges before shipping. Bolt carrier groups and charging handles may be included or offered as selectable options, so review the individual product listing to confirm the complete configuration.
Is a 350 Legend upper compatible with a standard AR-15 lower?
Yes. A 350 Legend upper is designed for the AR-15 platform and fits compatible standard-dimension AR-15 lower receivers. The rifle must use a magazine designed for 350 Legend ammunition.
What bolt carrier group does a 350 Legend upper use?
The 350 Legend uses a standard AR-15 bolt carrier group for .223 Remington and 5.56 NATO because the cartridge uses the same basic bolt-face diameter.
What magazines are used with a 350 Legend upper?
The 350 Legend requires AR-15 magazines designed specifically for the cartridge. Standard .223 Remington and 5.56 NATO magazines may not feed the straight-wall cartridge reliably.
Is the 350 Legend good for deer hunting?
Yes. With appropriate hunting ammunition, the 350 Legend is well suited to deer and similar game at short to moderate distances where lawful. Always follow local hunting regulations and select ammunition intended for the game being pursued.
What is the effective range of the 350 Legend?
The 350 Legend is generally considered a short- to medium-range hunting cartridge. Practical range depends on ammunition, barrel length, environmental conditions, target size, optic setup and shooter.
What barrel length is best for a 350 Legend upper?
Many shooters choose 16- to 20-inch barrels. A 16-inch barrel provides a compact and maneuverable hunting rifle, while longer barrels may offer additional velocity and a steadier feel.
What barrel twist rate is commonly used for 350 Legend?
A 1:16 twist is common for 350 Legend barrels and works with many widely available hunting loads. Always match the barrel specifications to the ammunition you plan to use.
Does the 350 Legend use a standard AR-15 bolt and magazine?
It uses a standard .223 Remington and 5.56 NATO bolt face, but it requires magazines designed for 350 Legend. The bolt carrier group can be standard AR-15 pattern, while the magazine must accommodate the cartridge's straight-wall case.
Why is 350 Legend popular in straight-wall hunting states?
Many jurisdictions that restrict traditional bottleneck rifle cartridges for deer hunting allow certain straight-wall cartridges. The 350 Legend provides AR-15 compatibility, manageable recoil and practical hunting performance, but hunters must verify current local laws.
Why buy a 350 Legend upper from Ballistic Barn?
Every upper is assembled in-house using carefully selected components, individually inspected, and checked for proper headspace using Manson GO and NO-GO gauges. Available configurations allow customers to select components that better match their hunting application.