12.7mm SMG Stacked Magazine

12.7mm SMG Stacked Magazine is a weapon mod for the 12.7mm submachine gun (GRA) $$

Effects
This mod 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.

Locations
Sold by:
 * Vendortron, Gun Runners
 * Traveling merchants
 * Arms Merchant, 188 Trading Post
 * Boomer munitions manager, Nellis Air Force Base in the mess hall & munitions storage building.