They don’t weigh much, ammo is never scarce and they’re a perfect last resort. Version: 1.1 - 9 new burst-fire receivers (Innovative 10mm pistol), recon scope (Innovative 10mm pistol and Legendary version), light barrel (Innovative 10mm pistol and Legendary version). To alter, make sure you.The 10mmeters fight pistol is definitely a next-generation 10mmichael sidearm produced before the Great Battle. 10mm Pistol is a Non-Automatic Weapon in Fallout 4. ↑ Weapon modifications and appearance in Fallout 4. This simple mod reduces the size to 80% of it's original. 59 modifications (Innovative 10mm pistol), 32 modifications (Legendary version). Music used: Lensko-Cetus: Original upload 11 August 2020 1:02AM. Fallout 2 offered a 10mm pipe rifle in the early game.