Firearm purchases require a background check and must be picked up in person by the purchaser
SBR transfers will not be accepted 
The Rock Island Armory M1911 A2 FS-TACT II is a semi-automatic pistol, with the "FS" denoting a full-size frame and the "TACT" indicating a tactical design with a full-length picatinny rail. Specific specs like caliber, weight, and capacity vary between models, but a 10mm version is known to have an 8+1 capacity, a 5-inch barrel, and a weight of around 40 oz. Other tactical features often include a G10 grip, fiber-optic front sight, and a click-adjustable rear sight. 
General specifications
Action: Semi-automatic, single action
Frame: Full-size
Frame Style: Tactical with a full-length Picatinny rail
Grips: VZ Grips G10
Sights: Fiber-optic front, click-adjustable rear
Trigger: Adjustable with a pull weight typically between 4-6 lbs 
Model-specific examples
10mm Auto
Caliber: 10mm Auto
Barrel Length: 5 inches
Weight: 40 oz
Capacity: 8+1 rounds
Finish: Parkerized
Height: 5.5 inches 
.45 ACP (A2 Tac Ultra FS HC)
Caliber: .45 ACP
Barrel Length: 5.05 inches
Weight: 2.5 lbs
Capacity: 13+1 rounds
Height: 5.77 inches