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Griffin Armament Enhanced Mil Spec BCG 556/300BLK
Griffin Armament Enhanced Mil Spec BCG 556/300BLK

Griffin Armament Enhanced Mil Spec BCG 556/300BLK

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On sale $165.00 $160.00
Normal Price:$170.00
Your Savings:$10.00(6%)
Complete Bolt Carrier Group. Compatible With 300 Blackout.
Yes, It Is In Stock ( For Real )

Griffin Armament Enhanced Mil Spec Bolt Carrier Group For 556 / 300BLK Rifles

The Griffin Armament BCG combines an 8620 carrier, 9310 Bolt, 4340 cam pin and extractor. All the proper heat treats, the correct shot peen, and the often neglected post heat treated grind are present. All components are billet machined and all surfaces receive a finish pass in machining for improved surface smoothness. The finish is a deep black finish with remarkable lubricity.

These are assembled to the current military technical data package with permatex'd and properly staked carrier keys. They also feature the current 15,000 round extractor spring design and a Crane o ring for reliable extraction in extreme conditions. In the testing and evaluation phase Griffin ran thousands of rounds in multiple manufacturers rifles without a single malfunction.

- 8620 carrier
- 9310 bolt magnetic particle inspected; high pressure tested
- Bolt properly heat treated, shot peened, and post heat treat ground with headspace held to half the blueprint specification
- 4340 cam pin and extractor
- Finish pass machined on all surfaces
- Full billet construction
- Premium melonite QPQ finish
- Latest 15k round extractor spring design
- Crane o ring for increased extraction reliability in extreme conditions
- Billet machined gas key, installed with permatex and staked to current TDP
- Caliber: 5.56mm (.223) and 300 blackout

For complete and current information on this item please see the manufacturer's website.
Satisfaction guaranteed. We are so confident that you will be 100% satisfied with this product that we have protected your purchase with our 30 day money back guarantee.
California residents: this product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information visit https://www.p65warnings.ca.gov.

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