User Ratings
No ratings yet
Be the first to review this product
Product Description
The KAK Industry K-SPEC Enhanced Bolt Carrier Group (BCG) is built for dependable cycling and long-term durability in AR-15 platforms chambered in 5.56 NATO and .300 Blackout. It runs reliably in a wide range of conditions, including suppressed use. This M16/full-auto profile carrier features a hard chrome finish for smooth operation and easier cleaning.
Key Features
- K-SPEC enhanced AR-15 bolt carrier group for 5.56 NATO and .300 Blackout
- Dual ejectors for strong, consistent case ejection
- M16 / full-auto profile carrier design
- Hard chrome (full chrome) finish for corrosion resistance and easier maintenance
- Side vents and angled carrier rail cuts to help manage debris and improve reliability
Specs
- Model/Series: K-SPEC Enhanced
- Compatibility: AR-15
- Carrier Profile: M16 / Full Auto Profile
- Finish: Hard Chrome (Full Chrome)
- Material: Steel
- Bolt Material: 9310 Steel
- Approx. Weight: 0.81 lb
- Approx. Dimensions: 8.00 in (L)
- UPC: 811163035088
- Manufacturer Part Number: 425-0505-003
Specifications
- Manufacturer:
- Kak Industry
- Category:
- bolt-carrier-group
- Caliber:
- 5.56x45mm NATO
- Platforms:
- AR-15
- Weight:
- 12.96 oz
- Length:
- 8.0"
- UPC:
- 8228873666682
- MPN:
- 425-0505-003
- Required Component:
- Yes
Parts Cabinet
Track parts you own or plan to buy.
Where to Buy
Have one to sell?
Sponsored
MantisX
The smart way to train your AR build
Built your rifle — now train it. BlackBeardX installs in minutes and turns your AR into a full dry fire system with smart feedback on every pull.
Shop BlackBeardXPrice History
Current
$213.98
Lowest
$213.98
Highest
$213.98
Price Alert
Sign in to save a target price and receive an email when this component drops.
Sign In to Set AlertSimilar Products
Bravo Company Bolt Carrier Group, Black
Bravo Company Manufacturing (BCM)
$238.99
Toolcraft Logo'd Premium 5.56 Nickel Boron BCG with Carpenter 158 Bolt
Toolcraft
$119.99
Microbest PSA Custom Fathers of Freedom 5.56 NATO Full Auto Profile Phosphate Bolt Carrier
Microbest
$134.95
Aero Precision M16 / AR-15 Bolt Carrier Group - Parkerized - No Logo
Aero Precision
$126.84
M16 5.56 Bolt Carrier Group
Colt
$196.12
Toolcraft Non-Logoed Premium 5.56 Nickel Boron BCG with Carpenter 158 Bolt
Toolcraft
$109.99
Faxon Firearms Bolt Carrier Group, Black - Precision Bolt Carrier Group for Superior Performance
Faxon Firearms
$155.99
Bravo Company Bolt Carrier Group, Flat Dark Earth
Bravo Company Manufacturing (BCM)
$222.99
Builds Using This Part
No builds yet — be the first to use this part.
Related Guides
Guide
.308 Win vs. 6.5 Creedmoor for AR-10 Builds
A technical comparison of .308 Winchester and 6.5 Creedmoor for AR-10 platform builds — covering ballistics, recoil, parts availability, and which cartridge fits which use case.
5 min read
Guide
AR-10 Receiver Patterns: DPMS vs. Armalite Compatibility
The AR-10 has two incompatible receiver patterns — DPMS and Armalite — that look similar but do not share parts. This guide explains the differences and how to buy correctly.
6 min read
Guide
The AR-10 Platform: What It Is and How It Differs from the AR-15
A practical overview of the AR-10 — its origins, how it differs from the AR-15, available calibers, and when it makes more sense than a standard AR-15 build.
6 min read