Skip to main content

18" 350 Legend AR-15 Upper Assembly | SHAW Barrel | 1x16 SS Carbine Length HBAR Barrel | A2 Flash Hider | 15" MLOK Rail

$359.99
(1 review) Write a Review
SKU:
18350LSBUAHB1X16SSA215MLR
  • AR-15 Charging Handle | Standard Milspec
  • AR-15 Charging Handle | Tactical Extended Latch | Gen 2
  • AR-15 Charging Handle | Tactical Extended Latch | Gen 4
  • AR-15 Ambidextrous Charging Handle | Ambi Latch
  • 5.56/223 Bolt Carrier Group AR-15 | Nitride Milspec BCG
  • 5.56/223 Bolt Carrier Group AR-15 | Nickel Boron NIB Milspec BCG
  • Muzzle Compensator 1/2x28 Threads AR-15 | Black
  • Linear Compensator 1/2x28 Threads AR-15 | Black
  • Superlative Arms .750” Adjustable Gas Block | Stainless Steel | Solid, Set Screw | Melonite Finish AR-15
  • CMMG ZEROED Adjustable Gas Block .750" | AR-15 LR-308 Steel Black
  • 350 Legend 5 rd Magazine | Duramag C Products | Stainless Steel
  • 350 Legend 10 rd Magazine | Duramag C Products | Stainless Steel
  • Cerakote | FDE Fat Dark Earth
  • Cerakote | OD Green
  • Cerakote | FDE Fat Dark Earth
  • Cerakote | OD Green
Adding to cart… The item has been added
18" 350 Legend AR-15 Upper Assembly | SHAW Barrel | 1x16 SS Carbine Length HBAR Barrel | A2 Flash Hider | 15" MLOK Rail

Shaw Custom Barrels, also known as E.R. Shaw established in 1913, is a renowned manufacturer of rifle barrels and firearm components. Known for their precision and craftsmanship, E.R. Shaw barrels are used by gunsmiths and custom rifle builders for their consistent accuracy and reliability. We trust them and so should you. If haven't heard of them, a quick search will confirm their landmark reputation in the shooting community. 

Ballistic Barn uppers are American Made and machined by manufacturers of mil-spec AR-15 components.  All barrels are individually checked for headspace using Manson go and no-go gauges.

Specifications: 

  • Upper Receiver: AR15 milspec forged aluminum upper receiver with forward assist and dust cover assembly installed. Matte black hard coat anodized Mil 8625 Type 3 Class 2. Forged from 7075 T6 aluminum.  7075 Aluminum is superior in strength to 6061 billet aluminum.
  • Handguard: Premium Ultralight 15" Extended Rifle Length Narrow-Profile AR15 M LOK Handguard. Fit and finish on our line of ergonomical free float rails is outstanding and light weight. M LOK slots run the entire length of our rail at the 3, 6, and 9 o'clock positions. M LOK compatible rail sections and attachments can easily be attached to our handguards which makes adding accessories like sights, bipods, flash lights, grips, lasers, etc. a breeze.  Matte black hard coat anodized Mil 8625 Type 3 Class 2. Milled from 6061 aircraft aluminum.
  • Barrel: Shaw Barrels Match Grade 18" 350 Legend 416R Stainless Steel HBAR profile Barrel with 1x16 twist. 1/2x28 muzzle threads.  Standard AR15 Big Bore Barrel Extension w/ single feed ramp. Properly headspaced with Manson Go and No-Go Gauges.
  • Gas Block: .750” Low Profile
  • Gas System: Carbine Length Gas Tube.
  • Muzzle Device: A2 Flash Hider
  • Charging Handle: NOT INCLUDED
  • Bolt Carrier Group: NOT INCLUDED

***IMPORTANT NOTE ABOUT MUZZLE DEVICES ON THIS UPPER:  ALL MUZZLE DEVICES SENT OUT ON THIS UPPER ASSEMBLY ARE 1/2X28 THREAD PITCH AND THEY ARE PROPERLY BORED OUT TO ACCOMMODATE A 350 LEGEND BULLET HAVING A DIAMETER OF .357 INCHES.  IF YOU CHOOSE TO CHANGE OUT THE MUZZLE DEVICE, BE CERTAIN THE BORE CAN ACCOMMODATE THE DIAMETER OF THE PROJECTILE.  NOT ALL 1/2X28 MUZZLE DEVICES WILL BE BORED OUT SUFFICIENTLY FOR THIS.***

Upper arrives assembled, ready to use and will fit all standard Milspec dimension AR 15 lower receivers.

This item is NOT a firearm and will be shipped directly to you, no FFL is required.

1 Review Hide Reviews Show Reviews

  • 5
    350 Legend 18 inch Shaw

    Posted by Chase Hughes on Dec 28th 2025

    Always been a fan of ER Shaw stuff for years now. I needed a 350 Legend AR so this fit the bill. Such a nice looking well made upper. Cycled perfectly at 4 oclock like it should and shoots MOA. Don't pass this one up.