STD rings are precision engineered to match up with STD 1-piece or STD 2-piece bases. The rear ring is secured by windage adjustment screws. They boast machined steel construction and are available in five different ring heights.
Specs:
| Material | Steel |
| Base Cant | No |
| Height (in) | 0.9 |
| Weight (oz) | 3.2 |
