Description
Engraved 308 Nitride Bolt Carrier Group (BCG)
Product Specs:
-
- 308 Caliber
- Salt bath nitride finish
- M16 cut
- 9310 steel carrier
- Carpenter 158 steel bolt
- 4140 steel extractor
- MIL-SPEC O-ring
- MIL-SPEC gas rings
- 4140 steel cam pin
- 8740 steel firing pin with hard chrome finish
- Magnetic particle inspected
- Proudly made in the U.S.A.
Will work with 243, 6.5 Creedmoor, 45 Raptor, and other “standard 308 calibers”
These are engraved in-house to order. If you have a custom request, or combination of markings, please email our Engraving Department
Dewey (verified owner) –
The engraving is nice and the bolt cycles well. My son loves the shark face.
However, this bolt is the old design with the 0.076″ firing pin diameter. The large firing pin craters primers on standard 308 rounds (even bulk). It cycles fine, but I have punctured primers from another USA-made BCG with this same firing pin diameter. The only fix is to by a KAK/Tookcraft/JP/Aero/PSA or any other “high-pressure” bolt (typically for 6.5creed) to use with this carrier. Look for something 0.068″ or smaller firing pin.
Perhaps KMT will offer a high-pressure bolt option in the future at an awesome price for us patriots?