AR-15 Upper Assembly - .300 AAC Blackout (16" Stainless Barrel & 13.5" M-Lok Handguard, 1:8 Twist)

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

Description

Want a fast way to swap your AR's caliber between your .223 or 5.56mm and the .300 AAC Blackout caliber? This upper assembly makes it simple. You just pull out your AR's takedown and pivot pins pull your upper off, put this one on, and push the pins back in. Sounds easy, right? Told ya.

This upper assembly comes you already prebuilt, so you don't have to screw with any building. You get a 16" stainless steel barrel accompanied by a 13.5" M-Lok free-floating handguard. All you need to add are back up 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

AR-15Lowerreceivers.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally. 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 (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. We try our best to keep our shipping page current, but laws change daily.

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.