Rock River LAR-15 NM A4 CMP 5.56 NATO AR-15 Semi Auto Rifle 20" Heavy Barrel .223 Wylde Chamber 20 Rounds 12.5" Free Float Handguard Colapsible Stock Black Finish

Item No. FC-842834100507
Rock River LAR-15 NM A4 CMP 5.56 NATO AR-15 Semi Auto Rifle 20" Heavy Barrel .223 Wylde Chamber 20 Rounds 12.5" Free Float Handguard Colapsible Stock Black Finish
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Brand: Rock River Arms, Inc.
MFR #: AR1289
UPC: 842834100507
Item #: FC-842834100507
Typically ships within 5 to 7 business days when a valid FFL is received
  • All firearm sales are final. NO RETURNS.
  • Return to manufacturer for warranty service.
  • Actual buyer must pickup from FFL dealer who will conduct the background check. Learn more
  • Firearm transfer must be the actual transferee/buyer. Click here to see BATFE form "Transaction Record Part 1".
  • Firearms are only available for purchase online.

A $15.99 handling fee will be charged per order. No additional charge for multiple firearms on an order.


National Match A4 From Rock River Arms

Rock River Arms makes some of the best AR-15 rifles in the world. After exhaustive testing, both the FBI and DEA turned to Rock River Arms for their patrol rifle contracts. If you want a rifle rugged enough for the top federal law enforcement agencies in America, choose the LAR-15.

The LAR-15 NM A4 CMP Rifle, is a competition level rifle that is purpose built to deliver amazing precision at long range. Featuring a cryogenically treated 20" stainless steel heavy barrel with a .223 Wylde chamber you are assured laser like accuracy from this fantastic rifle. A .223 Wylde chamber is optimized to shoot both 5.56x45mm NATO and .223 Remington with the same consistent precision. It's an optics ready platform that includes a railed gas block if you wish to add iron sights. With a RRA two stage match chrome trigger group and a RRA chrome BCG this rifle boasts flawless performance. The 12.5" RRA NM CMP TRO free float handguard is the ideal lightweight forend for this rifle. Built with RRA's forged aluminum receivers and a RRA Operator collapsible stock, this is a rock solid platform that you can count on shot after shot. The LAR-15 NM A4 CMP Rifle from Rock River Arms is an attractive and exceedingly effective rifle suitable for any match or competition shooting environment!

Rock River Arms LAR-15 National Match A4 CMP Rifle Specifications and Features:

  • Rock River Item Number: AR1289X
  • AR-15 Semi Automatic Rifle
  • .223 Wylde Chamber
  • Optimized for 5.56 NATO and .223 Remington
  • 20 Round Magazine
  • 20" Stainless Steel Heavy Barrel with a 1:8 Twist
  • Cryogenically Treated
  • Threaded 1/2x28 TPI with A2 Flash Hider
  • Optics Ready Platform with Railed Gas Block
  • Forged Aluminum RRA LAR-15 Lower Receiver
  • Forged Aluminum A4 Upper Receiver
  • RRA Two Stage Match Chrome Trigger Group
  • RRA Chrome Bolt Carrier Group
  • 12.5" RRA NM CMP TRO Free Float Handguard
  • NM Sling Swivel
  • A2 Pistol Grip
  • RRA Operator Collapsible Stock
  • Black Finish
  • Overall Length 37"
  • Weight 8.7 lbs
  • Made In The USA

Buying a Firearm Online is Easy!
  • Add your selected firearm(s) to your shopping cart and check out.
  • Select a local Federal Firearms Licensed (FFL) Dealer that will accept the firearm and complete the transfer. Find a FFL Dealer HERE.
  • If you choose an FFL Dealer that is not on our preferred list, you or your FFL Dealer will be required to fax or email us a signed copy of the Federal Firearms License referencing your Cheaper Than Dirt! order number. Download the Firearm Sales Form
  • Pick up your firearm from the FFL Dealer, who will need to do a criminal and mental health background check. Transfer fees may apply.
Buying Firearms on the Internet

Federal law requires firearms to be shipped to FFL Dealers. For an individual to receive a firearm from Cheaper Than Dirt! it must be shipped to an FFL Dealer in your state.

Locating a Federal-Firearm License Dealer (FFL) in Your Area

There are thousands of FFL Dealers in the United States. You may choose an FFL Dealer from our preferred listing or you may find a dealer in your area. To find a list of FFL Dealers in your area area CLICK HERE. If you choose a dealer that is not on our preferred list, either you or the FFL Dealer will be required to submit a copy of the Federal Firearms License referencing your Cheaper Than Dirt! order number. The FFL Dealer will usually charge a fee to conduct the transfer. There are duties that the FFL Dealer is required to do during the process which include a criminal and mental health background check through NICS. Remember, the FFL Dealer is doing you a favor and the process takes time to complete. Fees can vary so check with the FFL Dealer ahead of time to request a quote on the fees associated with your firearm transfer. The FFL Dealer is in business to make a profit and your internet purchase may be viewed as competition to their retail business. If you feel the fees are too high, you can search for another FFL Dealer.

Completing the Transaction

Once you place the firearm in your cart and checkout you will receive a confirmation email that has your order number and further instructions. We will verify the FFL license and also make the FFL Dealer aware that an order from Cheaper Than Dirt! will soon be arriving for you. Most orders are processed within 2-3 business days from the time we receive and verify the FFL Dealers information. Once shipped, your firearm will arrive at the FFL Dealer within 3-7 days business days. The FFL Dealer will begin processing the shipment. It may be an additional day or so before the FFL Dealer is ready to conduct the transfer of the firearm to you. Call the FFL Dealer and set an appointment to confirm that the firearm is ready to be transferred.

Please note! All Firearm Sales are Final

It is important to thoroughly inspect your firearm before completion of the transfer. Once the firearm is transferred into your name, Cheaper Than Dirt! will not accept a return or exchange under any circumstance. If a defect is discovered after completing the transfer, you must contact the manufacturer directly for repair or replacement.