Special Bolt Carrier Group K-Spec M16 BCG .224 Valkyrie/6.8 SPC Chrome-Phosphate Black
$179.99 at Ammunition Depot · 4 stores
In stock
KAK Industry K-SPEC Enhanced AR-15 5.56mm/.300 AAC Blackout Bolt Carrier Group C158 Steel Phosphate Black
KAK Industry · Bolt Carrier Group
No ratings yetBest price
$188.95at OpticsPlanet
Out of stock Sale checked Oct 20, 2026
In stock now instead
- Special Bolt Carrier Group K-Spec M16 BCG .224 Valkyrie/6.8 SPC… $179.99at Ammunition Depot
- Bolt Carrier Group K-Spec M16 BCG W/Side Vent 5.56x45mm Chrome … $179.99at Brownells
- APF Armory 6.5 Grendel Nitride Bolt Carrier Group Black $189.00at OpticsPlanet
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet | $188.95Salechecked Oct 20, 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.
Similar bolt carrier groups in stock
This part is out of stock at every store we track. These similar bolt carrier groups are in stock, with today's prices.
Bolt Carrier Group K-Spec M16 BCG W/Side Vent 5.56x45mm Chrome & Phosphate BLK
$179.99 at Brownells · 4 stores
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APF Armory M16 Mag Phos Bolt Carrier Group Black
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White Label Armory M16 5.56x45mm NATO/.223Remington Bolt Carrier Group Nickel Boron Nickel
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Price history
Dashed line = out of stock. Tracking since Oct 18, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| OpticsPlanet | $188.95 | $188.95 | $188.95 |
Since Oct 18, 2026.
About this part
The KAK Industry K-SPEC Enhanced AR-15 5.56mm/.300 AAC Blackout Bolt Carrier Group C158 Steel Phosphate Black is an AR-15 bolt carrier group from KAK Industry. One store lists it, OpticsPlanet at $188.95.
Fits and works with
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
Specifications
- Manufacturer
- KAK Industry
- Platform
- AR-15
- Caliber
- 300 Blackout
- Finish
- Phosphate
- Material
- Steel
From the manufacturer
KAK Industry K-SPEC Enhanced AR-15 5.56mm/.300 AAC Blackout Bolt Carrier Group C158 Steel Phosphate Black. The K-SPEC is a truly plug and play BCG that will accommodate whatever configuration your mission requires. Specifications for KAK Industry K-SPEC Enhanced AR-15 5.56 NATO/.300 Blackout Bolt Carrier Group: Manufacturer: KAK Industry Carrier Material: 8620 Steel Bolt Material: C158 Steel Caliber: .300 AAC Blackout 5.56mm Gun Make: AR Platform Gun Model: AR-15 Hand: Right Weight: 11.5 oz Condition: New Cam Pin Material: 4140 Steel Features of KAK Industry K-SPEC Enhanced AR-15 5.56mm/.300 AAC Blackout Bolt Carrier Group Dual Ejectors Angled Carrier Rail Cuts Downward Gas Ports Full Auto Profile Package Contents: KAK Industry K-SPEC Enhanced AR-15 5.56 NATO/.300 Blackout Bolt Carrier Group What firearm models does the manufacturer say KAK Industry K-SPEC Enhanced AR-15 5.56 NATO/.300 Blackout Bolt Carrier Group is compatible with? The manufacturer suggests that KAK Industry K-SPEC Enhanced AR-15 5.56 NATO/.300 Blackout Bolt Carrier Group is compatible with AR-15KAK Industry 425-3312-001: K-SPEC Enhanced AR-15 5.56mm/.300 AAC Blackout Bolt Carrier Group C158 Steel Phosphate Black
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