How to Use Mongoose Sights on a Compound Bow

The Mongoose peep sight, manufactured by PSE Archery, a division of Precision Shooting Equipment, is designed to automatically align with the shooter's eye. To use a Mongoose peep sight on a compound bow requires placing the peep sight between the strands of the bowstring and tying the sight in place. The sight is then pulled into alignment, by a rubber tube that connects the peep sight to the bow's cable, when the bow is brought to a full draw.

Things You'll Need

  • Vise or clamp
  • Towel
  • String separator
  • Plastic coated twist tie
  • Scissors
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Instructions

    • 1

      Wrap the towel around the riser of the bow and place the bow in a vise, or clamp the bow to a bench or table to hold it stable.

    • 2

      Orient the point of the bowstring separator so it is parallel with the bowstring. Gently insert the string separator precisely into the middle of the bowstring, above the nock point. Turn the separator 90 degrees so the slot in the base of the separator is aligned with the bowstring. Insert the bowstring into the slot of the separator to hold the separator in place.

    • 3

      Insert the peep sight between the separated strands of the bow string with the alignment tube attachment, stud pointing to the top of the bow.

    • 4

      Roll the end of the of the rubber alignment tube between your fingers to soften the rubber. Push the end of the rubber tube over the attachment stud on the peep sight with your fingers. Tie the opposite end of the rubber alignment tube to the middle of the center (non-moving) bowstring cable by making a half-hitch with the tube around the cable. Leave approximately an inch of the rubber tube sticking out from the end of the knot. Do not cut the tail of the tube off, as you may need to adjust the length of the tube at a later date.

    • 5

      Remove the bow from the vise. Insert the twist-tie through the peep sight and twist the tie closed so there is just enough tension to keep the peep sight from sliding freely along the bowstring. Draw the bow and set to your normal anchor point to determine how much the peep sight needs to be moved up or down along the bowstring to line up in your visual plane while sighting. Let off on the bowstring, adjust the peep sight along the string and redraw the bow with your eyes closed. Open your eyes and look through the aperture without actually looking at the peep sight. Aim the bow as normal, allowing the aperture to remain out of focus. Continue to make adjustments by moving the peep sight along the string until it lines up properly.

    • 6

      Tie the peep sight in place with the waxed thread supplied with the sight. Pull a 12-inch piece of thread around the bowstring, centering the middle of the thread on the bowstring above the peep sight. Make three half-hitch knots around the two separated sections of the bowstring, above the peep sight, pulling the knots as tight as possible.

    • 7

      Remove the twist-tie from the peep sight and run the thread along the bowstring through the groves in the side of the peep sight, and repeat the knot tying procedure at the bottom of the peep sight. Run the thread back to the top of the peep sight and tie three more half-hitches finished by a square knot. Bring the thread back down to the bottom of the peep sight and repeat the procedure. Cut off the ends of the threads and sear the ends of the threads with a match, taking extreme care not to burn the bowstring or melt the rubber tube with the match. Quickly press the ends of the thread against the bowstring, while the wax is still sticky, with your fingers.

    • 8

      Practice shooting the bow with the peep sight by looking through the peep sight while aiming normally.