Selectively adjustable darts

Claim 1

A dart comprising: a. a shaft member terminating in one end in a point and an opposite end in a relatively long cylindrical member having a threaded portion furthest removed from said point, b. a plurality of annular weight members, each having a central aperture with said central apertures located about said cylindrical member between said pointed and said threaded portion, at least one of said weights fabricated from a different density metal than another, but being relatively of the same dimensions, c. a washer emplaced on said threaded portion and in proximity with the last one of said weights furthest removed from said point end, d. a metallic cylindrical coupling member having a first threaded aperture in one end for coacting with said threaded portion of said long cylindrical member to retain said weights on said shaft member while permitting selective removal or addition of the same, a second threaded aperture relatively colinear with said first and located at an opposite end of said cylindrical member, whereby the central portion of said cylindrical member is solid metal, e. a flight accommodating section of a longer length than said coupling member and fabricated from a material which is substantially lighter than any material used in said shaft member and said annular weights, said section having a front threaded shaft for coacting with said second aperture in said cylindrical coupling member and having at an opposite end, a plurality of radially extending flight control means.