Wacky gun attachments ideas

Ok so this is my gun attachment idea that sound wacky as hell:

• 100 rounds double drum mag (Liberator AR platform only): well a chonky ass mag that will make gun uncomfortable and suck in ammo economy, but hey, you have more “dakka” for some spray and pray moments
• 50 rounds double drum mag (Breaker SG platform only): same shit like 100 rounds double drum mag for Liberator but for automatic shotgun like Breaker
• Underbarrel SMG: well you get it, just a side-mounted mag SMG that attached under a gun, give you some firepower advantages against enemy
• Underbarrel Semi-auto shotgun: just a random 4+1 tube mag semi-auto shot gun that attached under gun handguard for killing enemies in close quarters combat

Well that’s all my weapons attachments ideas divers