Arrow Components

A finished arrow is a system of components. Each one adds weight, and where that weight sits shapes how the whole arrow balances.

How components make up a finished arrow

Most arrows are built from the same set of parts, though not every build uses all of them:

• Shaft — the body of the arrow and usually its largest share of weight.
• Insert, outsert, or halfout — the adapter that joins the point to the shaft.
• Point — the front of the arrow, often the largest single contributor to front weight.
• Collars — optional front or nock-end pieces that protect or finish the shaft end.
• Nock and nock adapter — the rear of the arrow, which seats on the string.
• Fletching — vanes or feathers near the rear that stabilize the arrow in flight.
• Wraps and added weights — optional extras that add weight at a chosen location.

Component weight

Total arrow weight is the sum of the components, usually measured in grains. Balance depends on more than the total: a few grains added at the point move the balance point forward far more than the same weight added near the nock. That is why component weight and component location are considered together in front-of-center (FOC) calculations.

Measuring components

Published component weights and dimensions are nominal values. Measuring the components you actually build with — weight, length, and center-of-gravity location — gives you a more reliable basis for calculation and comparison. Consistent results depend on measuring every component the same way, from the same reference point.

Component variation

Components sold as identical are rarely identical when weighed. Shafts, points, inserts, nocks, and fletching each vary within manufacturing tolerances. On a single arrow, those differences can stack up or partly cancel out; across a set, they are a common reason nominally identical arrows end up with different weights and balance points.

Measuring variation is the starting point for building more consistent arrows.

Useful tools

Component weights and center-of-gravity locations feed the core arrow calculations. Browse every tool in Calculators & Tools.