

Product Description
The KAK Industry AR-15 bolt carrier group (BCG) is built for dependable cycling and long service life in 5.56x45mm and .300 AAC Blackout platforms. Featuring an M16 auto-profile carrier and a durable phosphate finish with chrome lining, this BCG is designed to resist wear and corrosion under repeated firing. The bolt is made from 9310 steel, paired with a 4130 steel gas key and phosphate-coated components for reliable performance.
Product Highlights
- M16 auto-profile bolt carrier group for AR-15 pattern rifles
- Phosphate finish with chrome lining for enhanced corrosion resistance and durability
- 9310 steel bolt for strength and longevity
- 4130 steel gas key; cam pin finished in phosphate
- Compatible with 5.56x45mm and .300 AAC Blackout
Specs
- Brand: KAK Industry
- Manufacturer Part Number: 425-0512-001
- UPC: 811163034975
- Platform Compatibility: AR-15
- Profile: M16 Auto Profile
- Compatible Calibers: 5.56x45mm, .300 AAC Blackout
- Finish/Coating: Phosphate (Black), Chrome Lined
- Bolt Material: 9310 steel
- Carrier Material: 8620 steel
- Gas Key Material: 4130 steel
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