Description
Ultra-light with hyper accuracy, this upgraded M4-type AR15 rifle upper is setting a new standard. Tucked under a lightweight free-float M-Lok handguard is a Government-profile M4 barrel forged from mil-spec 4150 Chromoly Vanadium with a 1:8 twist. Throw some 62-grain M193 or 77-grain Match Kings down the muzzle, and you’ll put one hole atop another at 100 yards for sub-MOA performance.
All things remain mil-spec for utter reliability: A forged Picatinny flattop receiver with M4 feed ramps keeps everything cycling smoothly in tandem with an M16 chrome-lined BCG. Carbine gas ensures any loads will cycle quickly and smoothly. With mil-spec fitment, this upper is guaranteed to fit any standard or billet 5.56 NATO or .223 Remington lower receiver assembly.
Barrel
- Chamber: 5.56 NATO
- Contour: M4/Government
- Length: 16”
- Twist Rate: 1:8
- Gas System: Carbine
- Gas Port: 0.750”
- Gas Hole Dia.: 0.070”
- Muzzle Threads: 1/2×28
- Feed Ramps: M4
- Material: 4150 CMV
- Finish: Parkerized
- Process: Button Rifled
- Lining: None
- Extension: M4
- Muzzle: A2 “Birdcage” Flash Hider
Handguard
- Attachment System: M-Lok
- Finish: Type III Hardcoat Anodized (Mil-Spec)
- Top Rail: M1913 Picatinny
- Material: Billet 6061-T6 Aluminum
- Attachment: Barrel Nut
Upper Receiver
- Profile: M4 Flattop
- Material: Forged 7075-T6 Aluminum
- Finish: Type III Hardcoat Anodized (Mil-Spec)
Bolt Carrier Group
- Profile: M16/Full-Auto
- Steel: Carpenter No. 158 (Mil-Spec)
- Exterior: Black Nitride
- Interior: Black Nitride
- Gas Key: Staked
- Charging Handle: Included
Lower Receiver Parts
- Buffer System: Mil-spec, Carbine
- Buttstock: Mil-spec, M4-type
- Parts Kit: Mil-spec, single-stage
WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to: www.P65Warnings.ca.gov
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.
- Caliber:
- 5.56
- Barrel Size:
- 16″
- stamped_io_product_reviews_new:
- a:8:{s:6:”widget”;s:27933:”
- Twist rate:
- 1/8
- Barrel Finish:
- Parkerized
- Handguard Type:
- Free-float
- Gas System Length:
- Carbine-length
- Barrel Steel:
- 4150 CMV
- Caliber:
- 5.56
- Barrel Size:
- 16″
- stamped_io_product_reviews_new:
- a:8:{s:6:”widget”;s:27933:”
- Twist rate:
- 1/8
- Barrel Finish:
- Parkerized
- Handguard Type:
- Free-float
- Gas System Length:
- Carbine-length
- Barrel Steel:
- 4150 CMV
