Rock River Arms Completed Upper Receiver A4 9MM Luger 16 Inch Barrel 1-10 Twist 1/2-36 Thread Free-Float Handguard Brake Black
$669.99 at MidwayUSA · 2 stores
In stock
Tiger Rock AR Build Kit BCG LPK and Magpul SL Kit 9mm Caliber 11in 16in Barrel Straight 1x10 Twist 1/2x36 Thread 15in M-LOK Handguard Compensator
No ratings yetBest price
$629.99at OpticsPlanet
Out of stock Sale checked Oct 21, 2026
In stock now instead
- Rock River Arms Completed Upper Receiver A4 9MM Luger 16 Inch B… $669.99at MidwayUSA
- Matador Arms MAT-9 AR-9 9mm 7.825in Roller Delayed Upper Reciev… $575.00at OpticsPlanet
- Matador Arms MAT-9 AR-9 9mm 7.825in Roller Delayed Upper Reciev… $575.00at OpticsPlanet
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet | $629.99Salechecked Oct 21, 2026 | Out of stock | Buy at OpticsPlanet |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
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Stern Defense AR-15 Upper Receiver 9mm 16.1in Barrel 15in MLOK Rail SD BU9 Bolt SD CH1 Charging Handle SCB 9 Comp Break Black 015-SD15INCHMOD4-KK
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Price history
Dashed line = out of stock. Tracking since Oct 16, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| OpticsPlanet | $629.99 | $629.99 | $629.99 |
Since Oct 16, 2026.
About this part
The Tiger Rock AR Build Kit BCG LPK and Magpul SL Kit 9mm Caliber 11in 16in Barrel Straight 1x10 Twist 1/2x36 Thread 15in M-LOK Handguard Compensator is an 11" 9mm upper receiver from Tiger Rock. One store lists it, OpticsPlanet at $629.99.
Fits and works with
- Caliber
- 9mm · Shop matching ammo
- Bolt
- 9mm · Bolt carrier groups
- Muzzle thread
- 1/2x36 · Muzzle devices
- Barrel length
- 11" · Handguards
- Handguard length
- 15" · Barrels
Specifications
- Manufacturer
- Tiger Rock
- Platform
- AR-9
- Caliber
- 9mm
From the manufacturer
Tiger Rock AR Build Kit BCG LPK and Magpul SL Kit 9mm Caliber 11in 16in Barrel Straight 1x10 Twist 1/2x36 Thread 15in M-Lok Handguard Compensator. This 9mm AR Build Kit comes with everything you need to get your 9mm AR-15 up and running The Tiger ROCK 9mm AR Build Kit features an AR-15 Tactical Charging Handle Assembly AR-9 M-LOK Super Slim Light Free Float Handguard and an AR-9 Magpul MOE SL Mil-Spec Stock Kit. The AR-9 Bolt Carrier Group is one of the most advanced 9mm bolt carrier groups on the market. This 9mm bolt carrier group includes the hammer firing pin extractor and the bolt spring. Nothing says "I'm proud of my country" than seeing the expression "I am proud to shoot the most powerfull pistol that I possibly can with the gear I have". Give it a shot today Specifications for Tiger Rock 9mm AR Build Kit: Manufacturer: Tiger Rock Overall Length: 11 in Barrel Length: 16 in Barrel Profile: Medium Barrel Twist Rate: 1-10 Firearms Threads Per Inch: 1/2x36 Handguard Type: Free-Float Muzzle Device: Compensator Finish: Nitride Color: Black Fabric/Material: Aluminum Steel Gas Block Journal Size-Diameter: .750 in Handguard Length: 15 in Gun Rail: M-LOK Gun Type: Rifle Gun Make: AR Platform Gun Model: AR-9 AR-15 Weight: 1.6 oz Barrel Material: 4150 Chrome Moly Vanadium Magazine Included: No Mount Type: M-LOK Projectile Caliber: .355 Caliber Package Contents: Tiger Rock 9mm AR Build Kit AR 9mm Custom Bolt Carrier Group- Black Nitride AR-9 ENHANCED 9MM AR-15 BILLET UPPER RECEIVER - Black AR-15 Tactical Charging Handle Assembly AR-15 15in M-Lok Super Slim Light Free Float Handguard AR-9 Flatline Compensator 1/2X36 Thread Pitch AR 9mm 16in 1:10 Twist Black Nitride Lower Parts Kit w/ Standard Grip and Trigger Guard AR-9 Magpul MOE SL Mil-Spec Stock Kit - Black What firearm models does the manufacturer say Tiger Rock 9mm AR Build Kit is compatible with? The manufacturer suggests that Tiger Rock 9mm AR Build Kit is compatible with AR-15 AR-9Tiger Rock RK9B-FMLUS.15-MAG347-NL: AR Build Kit BCG LPK and Magpul SL Kit 9mm Caliber 11in 16in Barrel Straight 1x10 Twist 1/2x36 Thread 15in M-Lok Handguard Compensator Nitride Anodized Black
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