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

Was: $449.99
Now: $349.99
SKU:
5561618(B)-MLOK(15)_AR15-LPK_AR15-CH_BCG-N_M4-STOCK_AR15-BTA
Availability:
Out of Stock
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This mil-spec AR-15 kit provides you with a highly accurate 5.56 NATO shooter that can safely chamber .223 Remington. Its 16" 4150 CMV barrel, treated with QPQ Nitride, can handle just about any grain weight and load and it'll resist corrosion and wear under extreme conditions. Paired with a lightweight M-LOK handguard, M16 BCG, and mil-spec parts kit, this kit's ready to provide you with an affordable custom-built AR that you proudly assembled yourself.

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.

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: QPQ Nitride
  • Process: Button Rifled
  • Lining: QPQ Nitride
  • Extension: M4
  • Muzzle: A2 “Birdcage” Flash Hider

Handguard

  • Attachment System: 15" M-Lok, Ultra-light
  • Finish: Type III Hardcoat Anodized (Mil-Spec)
  • Top Rail: Front/Rear 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: 9310 Tool, HPT/MPI-tested
  • Exterior: Black Nitride
  • 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. 

Shipping Restrictions  

We cannot ship certain parts and accessories to states that prohibit the sale or ownership of such components, like California, New York, and others. Before ordering, see our shipping restrictions for a list of all prohibited states and locales. We try our best to keep our shipping restrictions current, but state laws change almost daily. It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm.  

80LowerJig.com only ships within the United States. Federal law prevents international shipments of our products.  

WARNING: Handling firearms parts and certain firearm 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, visit www.P65Warnings.ca.gov. 

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 Restrictions

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.

www.80lowerjig.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.

Barrel Size:
16"
Caliber:
5.56
Twist Rate:
1/8
Barrel Finish:
Nitride

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.