.300 AAC Blackout Rifle Upper Assembly - (16" Stainless Barrel & 13.5" M-Lok Handguard)

$469.99
$399.99
SKU:
3001618(SS)-MLOK(135)

Description

The AR-15 is the most modular shooting platform in the world, and if you're looking for an easy way to swap calibers, you have to get this upper assembly.  It turns your .223 or 5.56mm-firing AR into one chambered in the .300BLK caliber.  And swapping calibers is fast too.  Just pull out the takedown and pivot pins, remove your current .223 or 5.56mm upper, replace it with this one, and push the pins back in. 

Simple.

This prebuilt upper assembly comes to you complete with a 16" stainless steel barrel accompanied by a 13.5" free float handguard.  The handguard makes excellent use of the M-Lok attachment system, so you can easily mount your accessories, like foregrips, tac lights, or whatever else.  You can even use your current .223 or 5.56mm mags with the .300BLK caliber.  All that's left is for you to mount either backup sights or an optic of your choice.

AR 15 RIFLE KIT SPECS:

Gas System: Pistol-length

Barrel Profile: M4

Barrel Steel: 416R

Barrel Finish: Stainless

Chrome Lining: No

Muzzle Thread: 5/8×24

Chamber: .300BLK

Twist Rate: 1:8

Barrel Extension: M4

Gas Block Size: .750″

Gas Block Type: Low-profile

Muzzle Device: A2 Flash hider

Receiver Material: Forged 7075 T6

Receiver Type: M4

Handguard Type: 13.5″ lightweight M-Lok free float

Bolt Carrier Group Included: Yes

Bolt Steel: 9310 steel, magnetic particle inspected

Bolt Carrier Profile: Full-auto

Charging Handle Included: Yes

Overall Length: 24.5″

Benefits of the 16” Pistol-Length Parkerized AR 15 Upper Assembly:

  • 100% legal to own and ship to your front door
  • Not considered a firearm – no FFL paperwork needed!
  • 4140 steel barrel and Freedom parts kit ensure sub-MOA accuracy
  • Prebuilt upper with gas system removes the guesswork of rifle making
No FFL required  Made in the USA  Lifetime Warranty

Shipping Restrictions

Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or “assault weapons” (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily

80-Lower.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.

We are a national retailer of individual components and not all products depicted on this website are legal in every state. Shipping of various products found on this website are prohibited to some states (such as California, Connecticut, District of Columbia, New Jersey, New York, Rhode Island, and Washington). The information, pictures, text or products presented on this website are not a representation by us, and should not be understood by you, that any product or completed firearm is legal to assemble or own in your state of residence. We encourage each and every builder to perform their own research about the state and federal laws that apply to them. It is your responsibility to understand the law and we encourage you to consult with an attorney or your local ATF representative.