While it is a different design from the N99, it uses the same gas-operated action, allowing it to use 10mm ammunition with ease. Fallout 3's weapons look pretty different from Fallout 1 and 2, it's not just Fallout 4. Loving this project, coming along beautifully! Well you're in luck, because here they come. A: It replaces (model swaps) all 10mm pistols in Fallout 4 with the Colt 6520.
