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

$449.99
SKU:
5561618(SS)-MLOK(15)_AR15-LPK_AR15-CH_BCG-N_M4-STOCK_AR15-BTA

Description

With your next AR build, go for MOA accuracy, and do it with a rifle that'll turn heads at the range. This AR build kit gets you a prebuilt upper assembly featuring a lustrous stainless steel barrel with a 15" free-floating M-Lok handguard. The barrel itself also has a 1:8 twist rate to allow you to fire a wider variety of 5.56mm bullet grains.

You can also choose whether or not to include a bolt carrier group and charging handle with your build. After assembly, all you'll need are the backup sights or optics of your choice, and of course mags and ammo.

AR-15 Kit Specs

Barreled uppers are assembled in-house before shipment.

Barrel

  • Chamber: 5.56 NATO
  • Contour: M4/Government
  • Weight: 1.50 lbs.
  • Length: 16"
  • Twist Rate: 1:8
  • Gas System: Carbine
  • Gas Port: 0.750”
  • Gas Hole Dia.: 0.072”
  • Thread Pitch: 1/2x28
  • Feed Ramps: M4
  • Material: 416R Crucible Stainless
  • Lining: Black Nitride
  • Extension: M4
  • Muzzle: A2 “Birdcage” Flash Hider

Handguard

  • Attachment System: M-Lok
  • Finish: Type III Hardcoat Anodized (Mil-Spec)
  • Top Rail: Mil-Spec 1913 Picatinny
  • Material: Billet 6061-T6 Aluminum
  • Weight: 8.6 oz.
  • Length: 15”
  • Inner Diameter: 1.355”
  • Barrel Nut: Included

Stripped Upper Receiver

  • Profile: M4 Flattop
  • Material: 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 Finish
  • Interior: Chrome-Lined
  • Gas Key: Chrome-Lined, Staked
  • 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.

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, Hawaii, 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.