In Borderlands there were bazookas with optical zoom and laser

What we need is 10mm pistol/mauser burst with additional magazine size xD. I dont support the idea if stuff was free to customize, maybe scoped rocket luncher or scopped 10mm lol.
The customization could affect magazine size and damage.
Lets say 10mm pistol is 3junk 1 wood. So lets say if you have materials for 2 of them 6juink and 2 wood you would be able to create 10mm pistol with 20% dmg increase. Just a suggestion lol. It could also sum the det points of 2 guns to 1. So the 1 gun would be 2 times as durable
Of course all the customization should affect lvl1 and some lvl 2 stuff, not lvl 3 or lvl 2 BG.