| Year | December 1940 |
| Weapon Type | Light Anti-Tank Gun |
| Origin & Designer | Germany/Rheinmetall |
| Numbers Produced | 2.797 |
| Crew | 3 (Commander, Gunner & Loader) |
| Calibre | 28mm (28/20x188) |
| Elevation | -5° to +45° |
| Traverse | 90° |
| Breech | Horizontal block |
| Recoil | Hydrospring |
| Gun Sight | ZF1x11 |
| Gun Mount | [@gun_mounts] |
| Carriage | Split Trail |
| Trailers | [@trailers] |
| Gun Shield | Two 4mm Plates (Spaced Armour) |
| Armoured Plate | [@armoured_plate] |
| Barrel Length | 1.730mm (L/45) |
| Overall Length | 2.69m |
| Width | 0.95m |
| Height | 0.38m |
| Weight | Weight in Traction: 229 kg Weight in Action: 223 kg |
| Round Weight | Pzgr 41 - 0.131 kg (AP) Sprgr Patr 39 - 0.085 kg (HE) |
| Muzzle Velocity | 1.400 m/s (AP) 1.380 m/s (HE) |
| Feed | [@feed] |
| Magazine Capacity | [@magazine_capacity] |
| Practical Rate of Fire | [@practical_rate_of_fire] |
| Rate of Fire | 22 r.p.m. |
| Maximum Rate of Fire | [@maximum_rate_of_fire] |
| Maximum Ceiling | [@maximum_ceiling] |
| Maximum Ground Range | [@maximum_ground_range] |
| Maximum Range | 2000m |
| Armour Penetration | 53mm @ 500m @ 30° |
| Traction | Various |
| Variants | 2.8cm sPzB leFI 41: Weight: 139 kg Elevation: -15° to +25° Traverse: 360° Notes: Lightened version designed for use with Fallschirmjaegers units |
| Notes | The sPzB 41 was a taper-bore (or squeeze-bore) weapon which fired a tungsten round at high velocity. It could penetrate over 50mm of armour at 500m, which was good for a gun of such small calibre. It could be used either as a ground fired weapon or mounted on a vehicle. It was used on virtually every front until the supplies of tungsten began to run out, then it was gradually withdrawn from use. |