KAK Complete AR15 Upper Receiver - 9mm - 4" Barrel - 2.9" MLOK

Name: KAK Complete AR15 Upper Receiver - 9mm - 4" Barrel - 2.9" MLOK
Brand: KAK Industry

KAK Industry · Upper Receiver

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Best price

$414.95at KAK Industry

checked Oct 23, 2026

Buy at KAK Industry

Where to buy

Store	Price	Availability	Buy	Add to build
KAK Industry	$414.95checked Oct 23, 2026	Check store	Buy at KAK Industry

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

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Dashed line = out of stock. Tracking since Oct 6, 2026.

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Store	Latest	Lowest	Highest
KAK Industry	$414.95	$414.95	$414.95

Since Oct 6, 2026.

About this part

The KAK Complete AR15 Upper Receiver - 9mm - 4" Barrel - 2.9" MLOK is an AR-9 complete upper receiver from KAK Industry. One store lists it, KAK Industry at $414.95.

Fits and works with

Caliber: 9mm · Shop matching ammo
Bolt: 9mm · Bolt carrier groups
Barrel length: 4" · Handguards

Specifications

Manufacturer: KAK Industry
Type: Complete
Platform: AR-9
Caliber: 9mm

From the manufacturer

UpperBarrel Length- 4"Barrel Material- 41V50 Button Rifled BarrelChamber 9MM NATOTwist Rate 1:10Muzzle Device Milspec A2 birdcage 1/2-36Gas System- Blowback Upper Receiver- Forged 7075 T6 Aluminum, Precision Machined to M16/M4 SpecHandguard- 2.9", High Quality 6061 T6 Material Mlok with Proprietary Clamping System and Heavy-Duty Barrel Nut BCGOne piece BCGAuto Profile Carrier Machined from Aircraft/ Bearing Quality 8620 Steel, Properly Heat Treated, Ground to Perfection, BlackNitride Finish by H&MFiring pin is machined from 8740, precision ground, and chrome platedOne Piece Billet Fully Machined Enhanced Extractor, Phosphate coated for Increased reliability and corrosion resistanceS7 tool steel ejector and extractor retaining pin4130 Gas Key, nitride, precision staked using our hydraulic staking machineCarrier key screws- Grade 8, Properly Heat Treated and staked All KAK complete upper receivers are test fired for feed and function using commercially loaded ammunition