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Complete 16" AR-9 80% Build Kit

Complete AR-9 80% Build Kit - Carbine Length

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This blowback AR-9 build kit with Glock mag style 80% lower contains all of the necessary high-quality parts to build your 9mm Carbine at home! We removed all the guesswork and packaged the necessary parts to build what we believe is the highest quality AR-9 Carbine 80% build kit available on the web. Buy as a complete kit and save money versus purchasing the necessary items separately! All upper receivers will arrive assembled per your specifications and are QC checked prior to shipment.

Our Complete AR-9 80% Build Kit Features:

  • Slick Side Billet AR-9 Upper Receiver with Last Round Bolt Hold Open (LRBHO)
  • Billet 7075-T6 AR-9 80% Lower - Glock Style Mags
  • 16" Parkerized 9mm Barrel with 1:10 Twist Rate
  • Black Nitride 9mm Bolt Carrier Group
  • Standard AR-15 Charging Handle
  • Mil-Spec Stock
  • 5D Tactical 7.5oz 6-Position Carbine Buffer Tube Kit
  • AR-9 Lower Parts Kit
Price: $818.99
Sale Price: $699.99
You Save: $119.00

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Muzzle Device

(9mm) 5/8"x36 A2 Flash Hider (Black) [Add $0.00]
(9mm) 5/8"x36 Compact Muzzle Brake (Black) [Add $34.99]

15" Keymod - C-Shaped End Cut
15" Keymod - V-Shaped End Cut
MBUS Sights

Add Magpul MBUS Sights - Set - Black [Add $89.99]


About the kit:


The barrel available in this kit is a 16" length 4150 Chrome Moly Steel heavy barrel, with a 1:10 twist rate. The Mil-Spec Parkerized coating provides excellent corrosion resistance and an attractive satin-black finish.

Muzzle Device Option

A2 Style Flash Hider or Compact Muzzle Brake? While mostly a matter of looks or preference, some states have outlawed A2 Style Flash Hiders or consider them to be "evil features", contributing toward what may or may not be considered an "assault rifle" under the definition of state law. Be sure to read and understand your local laws. Aside from the legality, there are benefits in looks and performance when choosing a Compact Muzzle Brake. Muzzle brakes, besides looking cool, divert the gases exiting the barrel in such a way that reduces recoil and muzzle rise, and can improve follow-up shot accuracy.

Handguard Option

For our complete AR-9 80% build kit, the 15" Keymod handguard options offer full-length coverage and can offer the most flexibility when it comes to rail accessories, flip-up sights, and stable stationary shooting. Both are both available with a C or V-shaped end cut, which simply refers to the shape of the end of the handguard, and is purely a matter of personal preference.

Don't forget to add one of our 80% Lower Jigs, the fastest and easiest way to finish your 80% Lower at home!