Fencing bracket system

1. A fencing system comprising:

a post;

a first fencing rail, the first fencing rail comprising a generally hollow structure, and having first, second, and third vertically stacked internal cavities open at an end of the first fencing rail;

a mount installable onto the post, the mount comprising a planar front surface and opposite planar rear surface parallel to the front surface and positionable to abut the post when the mount is installed onto the post, the front surface of the mount being larger in dimension than the rear surface of the mount and the front surface of the mount connected to the rear surface of the mount by sloping longitudinal sidewalls so that a cross-section of the mount is substantially fan-shaped and provides a tenon structure facing away from the post when the mount is installed on the post; and

a bracket slidingly installable over the mount to securely retain the bracket to the mount, the bracket comprising:

a mortise cavity located on a rear portion of the bracket and configured to slidably receive the tenon structure of the mount, and

an opposite front portion of the bracket configured to be installable onto the first fencing rail, the front portion of the bracket including an end wall bounded by opposing first and second vertical sidewalls extending perpendicularly outward from edges of the end wall, and a first flexible finger set extending outwardly from the end wall between the sidewalls for entering into the internal cavities of the first fencing rail, wherein a gap is formed between the first flexible finger set and the first sidewall for receiving a wall portion of the first fencing rail, the first flexible finger set including first, second, and third vertically stacked fingers respectively insertable into the first, second, and third vertically stacked internal cavities, wherein at least one of the first, second, and third fingers comprises deformable ridges for frictionally engaging an inner surface of a wall portion of the first, second, or third vertically stacked internal cavities of the first fencing rail.

2. The fencing system of claim 1 , further comprising a second fencing rail having first, second, and third vertically stacked internal cavities, and wherein the bracket further comprises a second flexible finger set extending outwardly from the end wall between the sidewalls and parallel to and spaced apart from the first flexible finger set for entering into the internal cavities of the second fencing rail.

3. The fencing system of claim 1 , wherein the mount and the bracket are of molded plastic construction.