10.5″ 300 Blackout AR-15 Compact Upper

5 customer reviews


In stock


10.5″ 300 Blackout AR-15 Compact Upper

Product Specs:

  • 10.5″ 300 Blackout 4150 barrel
  • Magphos coating
  • .750 at the shoulder
  • Pistol length gas system
  • 5/8×24 threads
  • Standard A2 muzzle brake
  • The upper is built on a standard upper with forward assist and dust cover
  • 10″ MLOK Handguard, Rail style may vary

Additional information

Weight 6270317096 g

5 reviews for 10.5″ 300 Blackout AR-15 Compact Upper

  1. USMColdCorps

    110% pleasantly IMPRESSED!

    I am lucky enough to be a top-shelf buyer and this is my first experience with bargain ‘tactical’ buying. Although the internet in general had lots of negative to convey, I found it all to be just pompous SPECULATION and decided to investigate myself. The upper is on-par with my Colts and SIGs and I couldn’t be more pleasantly surprised & impressed! Way to be KM Tactical!

  2. Frank Meeker (verified owner)

    Good upper, didn’t know that this upper was 1 in 8 twist,not the 1 in 7 twist. Not listed in description. But still well made upper.

  3. Chad Wood (verified owner)

    Shipped in 5 days!!! Price point was the sell.
    No after seeing the upper, I am impressed. Assembled with an Anderson 80% lower and M&P parts kit with pistol buffer its just under 4 pounds! Looking to KMtactical for all my budget AR builds moving forward.

  4. gmalehate (verified owner)

    not even a scratch on it everything appears in order and i see no reason for it to not function, you cant beat the price. also Kmtactical ships fast, now if psa could do the same…
    Kmtactical keeps winning me over with every order so far!

  5. SERGEANT MAJOR R,COLE. USMC (verified owner)

    Well this is a simple one !! This is one of those companies that is very hard to fine I was lucky to find them I ordered a small part on eBay about six months ago with that being said this company has been great great pricing great people great parts .and accessories phenomenal and special parts for A.R. 15’s trust me they have it !! There are companies out there you can find a great deal every once in a while seems like every time I went on this website 4 or 5 times a week I found at least five or six great deals each time. The 300 blackout is the best A.R. 15 on the market this The 300 blackout was made to do it all and it does plenty of stopping power very accurate ammunition and it’s me to be silent KMT prices $219 blackout 300 10.5 upper assembly is the lowest price you’ll ever see there is no companies out there that would even come close serious guys ! KTM keep up the great work do you have a customer for life

    Sincerely Sergeant Major R,Cole

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