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Rock River Arms Tactical Carbine
California Proposition 65 Warning

This product can expose you to chemicals including lead, known to cause cancer and birth defects. For more info visit P65Warnings.ca.gov.

Rock River Arms

Tactical Carbine

$740.00
Low Stock (5 left) California compliant

Rock River Arms Tactical Carbine, Complete Upper Receiver, 350 Legend, 16" Barrel, RRA Operator Muzzle Brake, RRA 13" Free Float M-LOK Handguard, Anodized Finish, Black, Fits AR-15, 10 Rounds, 1 Magazine, Includes Bolt Carrier Group and Charging Handle Assembly 350L0328

Key Details
Brand Rock River Arms
Manufacturer Part Number 350L0328
UPC 842834124589
SKU RRA350L0328
Current Stock 5 available
Quantity Updated Jun 22, 2026 3:17 AM
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Purchase Requirements
  • Final availability is confirmed at checkout.
In-Store Pickup Required: All firearm purchases must be picked up at our Beverly Hills location after background check completion.
Product Description

Rock River Arms A4 Carbine upper comes chambered in .350 Legend with a 16" chrome moly 1/16 twist barrel. Additionally this upper includes a RRA 13" M-Lok compatible lightweight free float rail and a RRA Operator Brake (1/2-36 thread). This is a complete upper with bolt carrier group, charging handle assembly and a 10 round magazine.

Features
  • .350 Legend
  • 16 Inch Chrome Moly, 1:16 Twist
  • RRA Operator Brake, 1/2-36 Thread
  • Low Profile Gas Block, CAR Length Gas System
  • RRA 13 Inch Extended Lightweight Free Float Rail
  • Bolt Carrier Group, Charging Handle Assembly
  • (1) Magazine, (10) Rounds
Specifications
UPC: 842834124589
Manufacturer: Rock River Arms
Manufacturer Part #: 350L0328
Model: Tactical Carbine
Barrel Length: 16"
Capacity: 10 Rounds
Finish: Anodized
Type: Upper