Nockturnal - GT Nock .246 Colour:Green The micro insert weights are

The micro insert weights are designed for use with all Altra 166 arrows and are stackable for infinite weight adjustment

CARBON PRO Mount or Picatinny mount connection

Press parts together and hold firmly for a few seconds

Side Bar Quick Disconnect (No Front Quick Disconnect)

Nockturnal - GT Nock .246 Colour:Green The micro insert weights areDescription: Exclusive patented linear switch design works every time, no wires of connections, simple bowstring activated push on switch, easily switches off when done, extended burn time of 20+ hours, water proof, use in any conditions, see your arrow impacts under any light and find that arrow on pass thru shots. Bowstring activated linear switch Fool proof operation in any condition Long life lithium battery Super bright LEDs Water and weather