This super sleek upper assembly wants, no, needs to be a part of your AR build. With it's slanted end and M-Lok attachment system over a parkerized 16" barrel, our math guys calculate it'll up the cool factor of your AR by 18.7%. Yep. We have a math guy. And don't worry, this thing comes to you already built. So put away your wrenches and punches. Just grab your favorite backup sights or optic and mount 'em on top. Do the math, get this upper assembly, and get ready to be 18.7% cooler when you shoulder your AR. Just don't put it down, or that extra 18.7% coolness goes away.
Upper Assembly Specs
Barrel Length: 16"
Gas System: Carbine-length
Barrel Profile: M4 style
Barrel Steel: 4150V chrome moly
Barrel Finish: Black nitride
Chrome Lining: No
Muzzle Thread: 1/2-28
Chamber: .223 Wylde
Twist Rate: 1:7
Barrel Extension: M4
Diameter at Gas Block: .750"
Gas Block Type: Low-profile
Muzzle Device: A2 flash hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: 12" free-float
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-auto
Charging Handle included: Yes
Why This 16” Rifle Upper?
- Ships straight to your front door – no FFL required!
- Completely legal to own, this is not considered a firearm
- Top-tier construction affords MOA accuracy
- Prebuilt upper is ready to fire out of the box
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.