12.7mm SMG stacked magazine
Increases the magazine capacity of the GRA 12.7mm submachine gun by 6 rounds, from 21 to 27. This mod causes the magazine to extend further along the top of the weapon.
- Vendortron, Gun Runners
- Traveling merchants
- Arms merchant, 188 trading post
- Boomer munitions manager, Nellis Air Force Base in the mess hall & munitions storage building.