#45 Cobalt Drill Bit - AK-74 5.45/5.56 Gas Port (oversized for 12.5" builds)
Brand : DRILL AMERICA
- SKU:
- 2920
![](https://cdn11.bigcommerce.com/s-i32t4keptf/stencil/ec767870-f41a-013c-940b-26a0343d0efa/e/6c4e4560-f41b-013c-3ccb-769c6d79d7d2/img/ProductDefault.jpg)
For gas port - 5.45 & 5.56
Slightly larger than the standard #48 bit, this is intended to increase gas for reliable cycling on 12.5" builds