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Davidson Defense 9MM AR-15 Rifle Build Kit - 16" Nitride Barrel, 1:10 Twist Rate with 15" M-LOK Handguard and Ambi Charging Handle

In stock! Ships within 24 hours or the next business day!

Maximize your 9mm accuracy with a proper rifle.

This 9mm AR-15, or "AR-9" rifle kit, provides the highest possible muzzle velocity for extra range and higher hit probability. Coupled with a lightweight, skeletonized M-LOK handguard and Magpul CTR stock, this AR-9 rifle kit provides a great way to plink, hunt varmint, and generally share ammo with your favorite handguns at the range.

Housed inside the conventional M4-type upper receiver is a ramped 9mm BCG. The included AR-15 lower parts kit works with any retailer 9mm AR-type lower receiver or AR-9 80% lower.

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-9 Rifle Kit Specs


  • Chamber: 9mm Parabellum
  • Contour: Straight-cut
  • Length: 16”
  • Twist Rate: 1:10
  • Gas System: Blowback
  • Muzzle Threads: 1/2x28
  • Material: 4150 CMV
  • Finish: Nitride
  • Process: Button Rifled
  • Muzzle: Knurled Flash Can


  • Attachment System: 15" Lightweight 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: 9mm
  • Steel: Carpenter No. 158 (Mil-Spec)
  • Exterior: Black Nitride
  • Interior: Black Nitride
  • Gas Key: Staked
  • Charging Handle: Included

Lower Receiver Parts

  • Buffer System: 9mm Buffer
  • Buttstock: Magpul CTR
  • Parts Kit: Mil-spec, single-stage

Lower receiver not included.

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.

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

Barrel Size:
Barrel Finish:
Twist Rate:

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.