| 主权项 |
1. A muzzle brake for a firearm comprising:
a substantially cylindrical hollow first portion having a first end and a second end; a pair of opposed rows of slots extending through the first portion, each row extending axially along a side of the first portion; a pair of rows of ports extending through the first portion, each row extending axially along the first portion above one of the rows of slots, wherein each row of ports includes four ports, with each row of ports including two central ports and two end ports, the end ports having a diameter smaller than a diameter of the central ports; a second portion having a first end received in the second end of the first portion, a second end, a central aperture extending through the second portion and being in fluid communication with the hollow first portion such that a bullet can pass through the first and second portions, the first end of the second portion defining a conical configuration for directing gases out through the rows of slots and rows of ports. |
