AR-15 Build Kit


5.56 AR 15 Rifle Kit – 16″ Parkerized Barrel, 1:8 Twist Rate with 15″ M-Lok Handguard


    5.56 AR 15 Rifle Kit – 16″ Parkerized Barrel, 1:8 Twist Rate with 15″ M-Lok Handguard

    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.

    AR-15 Rifle Kit Specs

    Barreled uppers are assembled in-house before shipment.


    • 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


    • Attachment System:  M-Lok
    • Finish: Type III Hardcoat Anodized (Mil-Spec)
    • Top Rail: M1913 Picatinny
    • Material: Billet 6061-T6 Aluminum
    • Attachment: Barrel Nut 

    Stripped 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: Phosphate Coating
    • Interior: Chrome-Lined
    • Gas Key: Staked, Chrome-lined
    • Charging Handle: Included

    Lower Receiver Parts

    • Buffer System: Mil-spec, Carbine
    • Buttstock: Mil-spec, M4-type
    • Parts Kit: Mil-spec, single-stage

    Lower receiver sold separately

    No FFL or serialization is required to fabricate a receiver under federal law. However, state laws vary. Some states require serialization or have banned 80% lowers and gun-making kits. We encourage each and every builder to perform their own research about the state and federal laws that apply to them.


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