The Shotgun SA is the last shotgun available in Resident Evil: The Umbrella Chronicles. It has the highest capacity and widest spread, but it comes at the price of being the weakest of the three available shotguns. Oddly, its Power rating in the Customize menu is C+, while the ordinary Shotgun has a rating of C, yet it is described as being weaker. One could assume this comes from the fact the shotgun has a wider spread, therefore reducing the number of pellets actually hitting the target. The weapon is first available in the scenario Death's Door as the default selected weapon of Ada Wong as well as Chris Redfield in Umbrella's End.

Upgrade chart

Upgrade Level 1 Level 2 Level 3 Level 4 Level 5
Ammo 80 160 160 160 Infinite
Capacity 8 8 12 12 12
Power D+ D+ D+ C C
Cost N/A 4 5 6 N/A
Total Cost N/A 4 9 15 N/A