Rock River Arms AR-15 Complete Upper .350 Legend 16in Stainless Barrel M-LOK Rail 350L0326

SKU: FLX-157966

Regular price $683.98
Sale price $683.98 Regular price $756.00
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Product Description

The Rock River Arms .350 Legend complete upper receiver assembly is built for dependable performance and easy caliber changes on AR-15 platforms. It features a forged A4 upper receiver paired with a 16 inch stainless steel barrel that is cryogenically treated and cut with a 1:16 twist for consistent accuracy. A carbine-length gas system with a low-profile gas block helps deliver reliable cycling, while the RRA 13 inch extended lightweight free float rail provides a rigid, accessory-ready platform with M-LOK compatibility. Finished with an RRA Operator Brake on 1/2-36 threads, this upper includes the bolt carrier group, charging handle assembly, and one 10-round magazine so you can get up and running quickly.

Product Highlights

  • Chambered in .350 Legend with a 16 inch stainless steel, cryogenically treated barrel for durability and performance
  • Forged A4 flat-top upper receiver for a strong, optics-ready build
  • Carbine-length gas system with low-profile gas block for smooth, reliable operation
  • RRA 13 inch extended lightweight free float rail with M-LOK compatibility for accessory mounting
  • Includes bolt carrier group, charging handle assembly, and one 10-round magazine

Specs

  • Brand: Rock River Arms
  • Manufacturer Part Number: 350L0326
  • UPC: 842834124572
  • Caliber: .350 Legend
  • Upper Receiver: Forged A4
  • Barrel Length: 16 inch
  • Barrel Material: Stainless steel
  • Twist Rate: 1:16
  • Barrel Treatment: Cryogenically treated
  • Gas System: Carbine length
  • Gas Block: Low profile
  • Handguard: RRA 13 inch extended lightweight free float rail, M-LOK compatible
  • Muzzle Device: RRA Operator Brake
  • Muzzle Threads: 1/2-36
  • Included: Bolt carrier group, charging handle assembly, (1) 10-round magazine

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