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5.56 (16" Stainless Barrel & 13.5" M-Lok Handguard) AR 15 Rifle Upper Assembly
$599.95 $394.94 (You save $205.01)
5.56 (16" Stainless Barrel & 13.5" M-Lok Handguard) AR 15 Rifle Upper Assembly - 80% Lowers
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SKU: 2231617(SS)-MLOK(135)

Assembling an 80% rifle build kit is one of the fastest and most cost-effective ways to make yourself a proud new owner of an AR-15 rifle without registration, serialization, or an FFL purchase.

The lightweight 13.5" M-Lok free-float rail allows scopes, tactical lights, hand grips, and many other accessories to be attached to your rifle quickly and efficiently. The AR-15 rile kit is an ideal weekend project for build kit beginners. By the end of the weekend, you’ll ensure your family is safe with a finished, unserialized AR-15 rifle.


Upper Receiver Assembly: This upper receiver is Forged from 7075 – T6 aluminum and is hard coat anodized black for durability. Featuring M4 feedramp cuts and T-marks, these upper receivers are made in the USA. Included in this AR-15 Upper Assembly is:

  • Barrel – 16” Mid-length Stainless 5.56 NATO 1:7 Twist
  • Upper Receiver - Forged 7075 Aluminum
  • Bolt Carrier Group
  • Gas Tube
  • Gas Block
  • Flash Suppresor
  • Charging Handle

This is a true "plug-and-play" upper assembly that requires no additoinal engineering or manufacturing exepct slapping it onto your lower receiver.

Please note that this 80% build kit requires that the builder completes the 80% lower receiver themselves, but that’s the fun part (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

5.56 (16" Stainless Barrel & 13.5" M-Lok Handguard) AR 15 Rifle Upper Assembly

$599.95 $394.94 (You save $205.01)
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Free Shipping on all orders $325+!

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Rich W.

You absolutely can not go wrong.

"I can't say enough good things about this upper! Nowhere else can you find all the features this upper has for this money. I'm no sniper, but after barrel break in and a quick sighting, this upper gave me 30 rounds of 5.56 with a 3.5"" grouping at 100 yards. I was absolutely amazed at the performance! She is a little heavy, but if you're not scared, you can't shake a stick at it! Awesome job, guys, and awesome customer service also. Had an order issue and it was resolved and shipped in time for me to get it right on Christmas Eve. Ho Ho Hooooo yeah...."


First Build

"Purchased the lower assembly and jig set with tooling and got to work on the 80% lower. Came back and chose this for my upper assembly. After following the directions and taking my time I have a complete rifle and took it out today to function test. I could not be happier, everything works as it should. It doesn't hurt that this upper is also really sharp looking!"


great product!

"Upper was everything we expected! Assembly went smooth, fit was perfect , shoots like a dream! Great buy for the price. "


1st Timer

This is a well constructed upper assembly that a first timer can enjoy with that stainless steel look. The hand guard can accept various attachments from iron sights to the more sophisticated. It goes well with any complete lower and is a good buy.



Looks real good.