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AR9 Pistol Kit – 9mm (7.5″ Nitride Barrel, 1:10 Twist & 7″ M-Lok Handguard) with Fire/Safe Marked 80% Lower

$890.43 $760.00 (You Save $130.43)

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If you’re looking for a great start or introduction to the world of the AR pistol, this will be perfect for you.  This build kit will get you a pistol-length AR chambered in 9mm, one of the most common pistol calibers on the planet.

We start with a prebuilt upper assembly made up of a 7.5″ barrel with a 7″ free floating handguard with the wildly popular M-Lok attachment system.  You also get a lower parts kit that includes the Magpul MOE grip, which is an upgrade from the standard AR pistol grip.  For the build’s read end, you get the SB Tactical pistol brace.  We finish the kit off with our 9mm 80% AR pistol lower receiver.  Please note, this lower is cut for Glock mags only.

(mags not included)

AR-9 Pistol Build Kit Specs:

Barrel Length: 7.5″
Barrel Steel: 4150 CMV, heat-treated
Barrel Finish: Nitride
Muzzle Thread: 1/2×36
Chamber: 9mm Parabellum
Twist Rate: 1:10
Muzzle Device: A2 flash hider
Receiver Material: Forged 7075 T6
Receiver Type: Flat-top w/ Picatinny
Handguard Type: Custom, super-slim 7” M-Lok
Bolt Carrier Group Included: Yes
Bolt Steel: Shot-peened, MPI-tested, 8620 steel
Bolt Carrier Profile: 9mm Hybrid
Charging Handle Included: Yes

AR-9 Pistol Build Kit Features:

  • Complete build kit w/ optional lower
  • Includes pre-built 9mm AR upper
  • Hybrid 9mm AR bolt carrier group
  • High-quality CMV barrel for accuracy
  • Compatible with Glock magazines
  • Features enhanced, polished trigger
  • Not considered a firearm, no FFL required
  • Proudly built in the U.S.A.
  • Backed by Lifetime Warranty

Barrel: Nitride-coated, 7”, chambered in 9mm Parabellum. Made of 4150 CMV steel. Heat-treated. Features 1:10 twist rate. Includes custom 7” ultra-slim M-Lok handguard, and A2 flash hider.

Upper: Mil-spec, made of forged 7075 T6 aluminum. Hard-coat anodized (Type III).

Bolt: Custom 9mm AR hybrid bolt carrier group. Compatible with 9mm Glock magazines. Heat-treated. Nitride finish. 8620 steel.

80% Lower: Complete with optional AR-9 80% lower. Mil-spec fittings. Type III Hardcoat anodized finish.

Lower Parts Kit: Mil-spec 9mm AR lower parts kit. Enhanced, polished trigger (EPT). Six-position buffer tube. SB Tactical Pistol Brace. Carbine buffer spring. 9mm pistol buffer.

Charging handle: Standard AR-15 charging handle.

Please note: If completing your AR-9 build using the optional 80% lower, please select an AR-15-compatible 80% jig from our available options.

No FFL required Made in the USA Lifetime Warranty

Shipping Restrictions 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. 

AR9 Pistol Kit – 9mm (7.5″ Nitride Barrel, 1:10 Twist & 7″ M-Lok Handguard) with Fire/Safe Marked 80% Lower

$890.43 $760.00 (You Save $130.43)

$754.98 $660.00 (You Save $94.98 )
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Free Shipping on all orders $250+!


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