CMMG Resolute 300 MKW-15 .458 SOCOM Semi Auto Rifle 16" Barrel 10 Rounds RML15 M-LOK Hand Guard RipStock Graphite Black

Item No. FC-816422024599
CMMG Resolute 300 MKW-15 .458 SOCOM Semi Auto Rifle 16" Barrel 10 Rounds RML15 M-LOK Hand Guard RipStock Graphite Black
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Brand: CMMG, Inc.
MFR #: 48A7A2C-GB
UPC: 816422024599
Item #: FC-816422024599
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.


The CMMG Resolute 300 Is Now Chambered in the Big Bore .458 SOCOM Cartridge

The CMMG Resolute 300 is based on the medium frame MKW-15 billet aluminum receiver set and is chambered in the extremely powerful .458 SOCOM! The Resolute delivers the goods all within a package familiar to anyone trained on the AR-15 or modern sporting rifle platform. With AR ergonomics and enhancements such as an SLR adjustable gas block, oversized ambidextrous charging handle and M-LOK compatible free float aluminum hand guard this rifle is a "big bang" for the buck. The Resolute 300 is from the premier series of rifles offered by CMMG providing you with the highest level of upgrades available along with a Cerakote finish.

When accuracy matters you can rely on the Geissele Automatics SSA 2-Stage Trigger to deliver the performance you need. As far as magazines, this particular rifle utilizes a 10 round CMMG modified Lancer magazine for reliable feeding of the larger .458 SOCOM cartridge. The time is now to jump into a new cartridge which affords you the opportunity to select a new defensive shooting cartridge, hunting cartridge, or something unique to show off to your friends.

CMMG Resolute 300 MKW-15 Semi Auto Rifle (Graphite Black) Specifications and Features:

  • CMMG Inc. Resolute 300 MKW-15 48A7A2C-GB
  • Direct Gas Impingement Rifle
  • .458 SOCOM
  • 16.1" 416 Stainless Steel Barrel (Salt Bath Nitride Finish)
  • Medium Taper Profile
  • 1:14" Twist Rate
  • Threaded 5/8x32 TPI
  • CMMG SV Break
  • Billet 7075-T6 Aluminum Mid-Size Type Upper Receiver
  • Billet 7075-T6 Aluminum AR-15 Type Lower Receiver
  • 10 Round Modified Lancer
  • Carbine Length Gas System
  • SLR Adjustable Gas Block
  • CMMG RML15 M-LOK Aluminum Hand Guard
  • CMMG Oversized Ambidextrous Charging Handle
  • CMMG Ambidextrous Safety Selector
  • Geissele SSA 2 Stage Trigger
  • CMMG RipStock 6 Position Collapsible Stock
  • Enhanced Receiver Extension with Ambi Sling Plate
  • Magpul MOE Pistol Grip
  • Cerakote Finish On Receivers and Hand Guard
  • Overall Length 33.3" Collapsed
  • Weight 8 lbs 4oz
  • Made In The USA
  • Graphite Black Finish
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.

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