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Ultimate 300 Blackout Build Kit

$1,400.00 $1,000.00 (You Save $400.00)

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SKU: BudgetUltimate_300BLK


Love the look of the old(er)-school M4-style rifles?  We’ve got just the thing, but with a twist.  Check out our Ultimate 300 Blackout rifle build kit.  Once completed, this kit will get ya an AR-15 that looks just like they used to when they first started makin’ ‘em with the A3 flat top upper receivers.  The only difference is, this one’s chambered in .300BLK.  That means you get a heavier load whose performance is excellent at closer ranges.

At just under $1,000, this .300 AAC blackout rifle build kit gets you almost everything you’d find on a military-issue M4: polished feed ramps, an M16 bolt carrier group, government-profiled barrel, chrome moly vanadium steel barrel, A2 fixed front sight post with carbine-length pre-installed gas system, A2 birdcage flash hider, forged upper receiver, and a mil-spec phosphate hard coat finish.

A mil-spec lower parts kit accompanies a six-position buttstock, a carbine buffer system, and a quality 80% lower.  It’s got everything needed to finish your at-home build.  This kit is 100% legal to ship straight to your front door, with no FFL transfer or paperwork needed. Nothing in this kit is considered a firearm by any state or federal law. If you were looking for the most affordable way to build a quality M4-style platform rifle, you’ve found it.

Rifle Specs

  • Barrel – 16″ length chambered in .300BLK with a 1:7 twist rate
  • Barrel Steel- Chrome moly vanadium steel
  • Government Profile Barrel 
  • M4 Feed Ramps 
  • Upper Receiver – Forged 7075 aluminum
  • M16 Bolt Carrier  
  • 80% Lower Receiver – choose between 7075 T6 forged aluminum, premium 6061 billet aluminum, or no lower at all if you already have one in mind.

Ultimate Accessories

  • Easy Jig Gen 2 AR15/AR9 Router Jig with tooling
  • Magpul MBUS rear flip-up sight
  • Single point rifle sling
  • Classic lower parts kit
  • Plano rifle hard case

Why this Kit Rocks

  • 100% legal to ship to your front door
  • Requires no FFL transfer or paperwork to own
  • Complete M4 clone from muzzle to buttstock
  • Forged upper and polished feed ramps
  • Government profile chrome moly vanadium barrel offers mil-spec accuracy

Please note: This AR-15 build kit requires that the builder complete the 80% lower receiver themselves, but that’s the rewarding part of the experience (and the only way to build your own AR-15 without the need of an FFL transfer or serialization).

No FFL required Made in the USA Lifetime Warranty

Ultimate 300 Blackout Build Kit

$1,400.00 $950.00 (You Save $450 )

$1,400.00 $950.00 (You Save $450 )
Save For Later
Save For Later

Free Shipping on all orders $250+!


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