[MikeDeltaRomeo]

XM307 ACSW

The Dillon

High Impulse Weapon System; youtube it to see in action.

BAE LEMUR

just to name a few...

 

[SHOOTER13]

*** MDR ...you ain't playin' !!

 

[FullDraw]

Good start to your list.

 

[CDR_Glock]

Mine is an FN Scar 17 which seems to be impossible to find.

A Gatling gun from Cabella's.

A Glock 18.

 

[american lockpicker]

Too many to list...

 

[ncarnage]

Remington ACR (not because of Call of duty)
Glock 18
And a chainsaw gun like in gears of war for the zombie war ( been reason "world war z".)