The Smith & Wesson M&P45 (specifically the M2.0 and Shield models) is a striker-fired, polymer-frame pistol chambered in .45 ACP, known for its durable Armornite finish and 18-degree grip angle. Available in full-size (4.6" barrel, 10+1 capacity) and compact Shield versions (3.3" barrel, 6-7 round capacity), these pistols are designed for duty, home defense, and concealed carry. 
S.W.A.T. Magazine +4
Smith & Wesson M&P45 Shield M2.0 (Compact) 
Caliber: .45 Auto
Capacity: 6+1 or 7+1 (extended magazine)
Barrel Length: 3.3"
Overall Length: 6.45"
Weight: 20.5 oz
Safety: Available with or without thumb safety 
Smith & Wesson M&P45 M2.0 (Full Size) 
Caliber: .45 Auto
Capacity: 10+1
Barrel Length: 4.6"
Overall Length: 7.9"
Weight: 29.8 oz
Action: Striker-fired
Features: Polymer grip, 4 interchangeable palmswell inserts 
Smith & Wesson +2
Key Features (All M&P45 Models)
Construction: Stainless steel barrel and slide with durable Armornite finish.
Grip: 18-degree angle with aggressive texture.
Sights: Steel 3-dot or white-dot sights.