|-
! Picture !! Name !! Fire modes !! Caliber !! Wgt !! Cond !! [[File:Parallar symbol.png|10px]]
|-
| [[File:Lockhart UBS-12.jpg|200px]] || '''[[Lockhart UBS-12]]''' || Pump-action || [[12 gauge]] || 3 || 15000 || 500
|-
| [[File:M26 MASS.jpg|200px]] || '''[[M26 MASS]]''' || Bolt-action || [[12 gauge]] || 3 || 10000 || 850
|-
| [[File:Crye Precision SIX12.jpg|200px]] || '''[[SIX12]]''' || Semi-auto || [[12 gauge]] || 3 || 10000 || 1500
|-
| [[File:Ten-X Tactical TX-12 STW.jpg|200px]] || '''[[Ten-X Tactical TX-12 STW]]''' || Single shot || [[12 gauge]] || 3 || 16000 || 400
|}
== List of integrated USGs ==
These USGs are integrated to their host firearm and are therefore non-removable. They, however, still have a Condition rating, and may still receive damage, independently of their host firearm.
{| class="wikitable sortable" style="font-size:10pt"
|-
! Picture !! Name !! Fire modes !! Caliber !! Cond !! Host firearm
|-
| [[File:U1-SG.jpg|200px]] || '''[[U1-SG]]''' || Pump-action || [[12 gauge CAWS]] || 10000 || ''[[Armat M41A Pulse Rifle]]''
|}
[[Category:Weapon accessories]]