16″ 300 AAC Stainless Steel Blackout Complete Rifle Kit No Lower


Elevate your rifle build with our 300 Blackout Stainless Kit. Featuring a 16″ Stainless Steel barrel with M4 Feed Ramps and a durable Stainless Finish, this kit ensures superior performance and durability. Made in the USA with precision-machined components, including a carbine length Stock Assembly and M-16 Bolt Carrier Group, it offers unmatched reliability.


300 Blackout Stainless Steel Rifle Kit With Ultra Slim Keymod Rail NO Lower Receiver

The 300 Blackout Stainless Kit begins with a 16″ Stainless Steel 300BLK Barrel with M4 Feed Ramps with a Stainless Finish.  Also, the barrel has a 1×8 twist Ratio and 5/8 x 24 Thread pattern on the end for flash Hider to screw on.  The Gas System on the 300 blackout Stainless Steel barrel is a pistol length with a diameter of .75 for the gas block.  The Upper Receiver is a 7075-T6 Aluminum with a hard coat Anodized Finish and a forward assist, shell deflector, and Dust cover assembly.  Also The 16″ 300 AAC Blackout Rifle kit with Stainless Steel Barrel contains all U.S.A. Made components to complete YOUR 300BLK Rifle using your stripped AR lower receiver except Magazine, Jig/tooling or Sight.  The Rifle Kit comes with a carbine length Stock Assembly, Lower Parts Kit, Charging Handle, and M-16 Bolt Carrier Group.  Additionally the Assembled Upper has a Stainless Steel A2 Style Birdcage Flash hider torqued on with a crush washer (Not Pinned or Welded to Barrel) so it can be removed.
  • Chamber – 300BLK Blackout
  • Twist Ratio – 1×8
  • Barrel Thread – 5/8×24
  • Barrel Steel – 416-R Stainless Steel
  • Flash Hider – Stainless Steel A2 Flash Hider
  • Handguard – 12″ Free Float Slim Keymod Rail
  • Gas System:  Pistol Length
  • Gas Block – .750 Low Profile gas block, Pistol Gas Tube with Pin
  • Upper Receiver – M4 Flat-top Upper with Feed Ramps
  • Bolt Carrier Group – Mil-spec M-16 Bolt Carrier Group assembly
  • Charging Handle – Included
  • Lower Parts Kit – Mil-spec Lower Parts Kit
  • Stock – US Made 6 Position Black Stock w/ buffer and spring
  • Made in the USA
  • SKU: DT9-039

This 300 AAC Stainless Steel complete Rifle Kit is not an FFL Item because there is no lower Receiver.  You can read more about building your own firearm at ATF Website here.

Additional information

Weight 13 lbs

Barrel Length

Barrel Chamber

Barrel Twist

Barrel Thread

Barrel Material

Barrel Finish

Barrel Gas Block

Barrel Gas System



Handguard Length


Accessory Attachment Style


3 reviews for 16″ 300 AAC Stainless Steel Blackout Complete Rifle Kit No Lower

  1. 5 out of 5

    Anthony B

    Purchased this kit on sale for Christmas of 2017. Extremely happy with the build quality of the upper as well as the included parts kit. I used the Poly 80 lower and it works perfectly. Out of the box it shoots factory Remington 300 AAC UMC supersonic ammo at about 1.5-2.0 MOA. Very happy with the kit and price point!

  2. 5 out of 5

    neil t Lee (verified owner)

    Good communication, great product , high quality packed nice for shipping,went together perfectly

  3. 5 out of 5

    Chris Smith (verified owner)

    Great company and great product I would definitely recommend them and will purchase from them again

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