Out of stock
Rock River Arms A4 LAR-9 10.5" 9mm AR Pistol, Blk - 9MM2142
Out of stock

Rock River Arms A4 LAR-9 10.5" 9mm AR Pistol, Blk - 9MM2142

SKU 774434
Brand Rock River Arms
Model Number 9MM2142
UPC 842834112999
Customers must read Compliance Information before purchasing.
This product is fulfilled by a PSA Partner and shipping times may vary.

Product Details


  • Type: Semi-Automatic
  • Series/Collection: A4, LAR-9
  • Caliber/Gauge: 9mm Luger
  • Grip Type: Black Hogue Rubber
  • Barrel Material: Chrome Molybdenum Steel
  • Receiver Material: Aluminum
  • Barrel Finish: Chrome-Lined Black
  • Receiver Finish: Black
  • Frame Finish: Black
  • Barrel Length: 10-1/2"
  • Overall Length: 29-1/4"
  • Weight: 6.3 lb
  • Muzzle Device: A2 Flash Hider
  • Stock Type: SB Tactical SBA3 Adjustable Arm Brace
  • Twist Rate: 1:10"



  • Includes - (1) magazine, manual and warranty information


Q & A

Retail Stock


Must be 21 or older to purchase.
All NFA Rules Apply.
These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.
It is the customer’s responsibility for understanding state laws regarding magazine capacities. Palmetto State Armory abides by all state regulations regarding the sale of high capacity magazines. We DO NOT ship high-capacity magazines with firearms to certain states. We WILL NOT replace high capacity magazines with state compliant magazines. We DO NOT offer refunds in place of the magazines. Please see our terms and conditions for a list or restricted states.
Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).