[MW-003] Assault Shotgun**

3-round burst shotgun. One shot can show stun effect, but firepower is low. Easy to handle, but strong recoil of firing, making it difficult to perform melee attacks after switching. There are about 15 attack judgments per shot, and the firepower for each burst is 45 times the indicated firepower. Depending on the distance, the number of hits may not be stable, and firepower and stun cannot be expected. 

Mobile Suit Gundam Battle Operation 2 Wiki : Shotgun. I referred from the article.

Weapon performance 
[ 55 ]Attack Power 
[  9  ]Ammo 
[ 44 ]Range
Weapon Category 
Live Ammo 
How to Use Weapons 
Right arm equipped
Burst Shot 
3-round burst Disabled  
ASL 
Disabled 
Weapon Ready State 
Walking / Jumping  
Hit Effect 
Wince 
Equipping Mobile Suits  

[RGM-79CA] GM Raid