AR15 Build Kit - 5.56mm NATO (16" Parkerized Barrel & 15" M-Lok Handguard)

Time to get more "hands on" with your black rifles. What do we mean by more "hands on?" We mean it's time for you to take more control over your AR-15 experience. Don't just go buy another AR from your local gun shop; build it your damn self with this kit.

This build kit gets you an AR chambered in 5.56mm NATO (yup, the same caliber as the military's M4 rifles) with a 15-inch M-LOK free-floating handguard for you to mount your vertical grip, tac light, or whatever else onto it. Just get a lower, some mags and ammo, and add the backup sights or optic of your choice, and you're good to go.

What’s Included

This kit is not a firearm. It includes an assembled upper receiver, bolt carrier group, lower parts kit, and buffer assembly with buttstock. It does not include the component to make a firearm: A stripped lower receiver. Pair this rifle kit with an AR-15 80% lower receiver and AR-15 jig to fabricate a receiver, sold separately.

New builder? This guide explains 80 percent lowers.

AR-15 Rifle Kit Specs

Barreled uppers are assembled in-house before shipment.

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: 1/2x28
• Feed Ramps: M4
• Material: 4150 CMV
• Finish: Parkerized
• Process: Button Rifled
• Lining: None
• Extension: M4
• Muzzle: A2 “Birdcage” Flash Hider

Handguard

• Attachment System: 15" 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, Chromed
• Charging Handle: Included

Lower Receiver Parts

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

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.