ArmaTec

This is a weapon i thought would really lend itself well to Fallout 4 and it's modification system. The TNW Aero rifle is a very modifiable rifle IRL with the ability to switch calibers from 22lr, 9mm, 10mm, 45ACP, 460 Rowland, .40S&W, 357SiG. It has a rail system and can take any attachments, uses a standard AR Stock tube for further customization. I think it would be something new to see a pistol caliber carbine in game. Source: https://www.tnwfirearms.com/product-p/asrx-cplt-xxxx-xxxx-xxxx.htm

Please don't forget the Tribes series :) Only a few sites host the 1,000's of mods,maps,skins and scripts from a game that only survived because of mods and user created content.