How to Install a Peep Sight on Your Bow Safely

The Short Version

• Relax your bowstring tension safely with a string relaxation tool (a bow press) or a smooth handheld string separator tool before touching the fibers.
• Divide the bowstring strands into two equal halves, insert the peep sight at your natural eye level, and ensure the angled grooves match your string angle at full draw.
• Wrap the peep securely using durable wrapping cord (serving thread) above, below, and around the middle channel so the unit cannot move or fly loose when released.
• Draw the bow to your normal draw hold spot (anchor point) to verify that the aiming hole sits straight and centers perfectly over your front pins.

What Tools You Need Before You Start

Working on a modern compound bow requires specific gear designed to protect the synthetic fibers of your string. Trying to cut corners with household items creates uneven pressure that can ruin your equipment or cause serious injuries.

Gather these items on a clean, well-lit workbench before you begin:

• String relaxation tool or smooth string separator: A bench-mounted bow press is the safest tool for taking tension off the string. If you do not own a press, use a rounded plastic or composite handheld string separator tool built specifically for archery strings.
• Your new peep sight: Make sure the sight matches your bow geometry. Shorter bows need steeper groove angles so the aiming hole sits flat to your eye at full draw.
• Archery wrapping cord: Choose dedicated bowstring serving thread (a braided nylon or high-strength polymer cord) to lash the peep in place. Regular sewing thread or household string will snap under bow vibration.
• Marking chalk or soft wax: A piece of tailor chalk, a silver pencil, or a tiny strip of painter tape lets you mark the string without damaging the strands.
• Sharp scissors and a lighter: You need scissors to make clean cuts on your wrapping cord and a standard lighter to melt the cut ends into neat locking balls.
• Your release aid and an arrow: You need your release aid to draw the bow naturally when checking the height. Always use a real arrow pointed at a safe target or backstop whenever you draw your bow.

Never use metal screwdrivers, kitchen knives, nails, or car keys to open the bowstring. Sharp metal edges cut the microscopic fibers inside modern bowstrings. A cut strand weakens the entire system, which can cause the string to snap violently under hundreds of pounds of stored force.

Finding Your Eye Height and Marking the String

A peep sight only works if it sits directly in front of your pupil when you reach your natural draw hold spot (the consistent point on your jaw or cheek where your hand rests at full draw). If you have to scrunch your neck, tip your head forward, or raise your chin to see through the hole, your peep height is wrong.

Put an arrow on the rest, point the bow safely toward a target, and hook your release to the string loop. Close your eyes, draw the bow smoothly back, and settle into your most comfortable, repeatable anchor position. Relax your shoulders, set your jaw, and let your head sit completely natural and upright.

Open your eyes without moving your head or neck even a fraction of an inch. Have a friend look across the string to see exactly where your aiming eye crosses the center of the bowstring. Have your helper place a small mark on the string with tailor chalk right at that eye level. If you are working alone, you can lightly pinch a piece of painter tape around the string at your estimated eye level, draw the bow again, and verify where the tape sits relative to your pupil.

Draw the bow two or three more times with your eyes closed to verify that your hand lands on the exact same draw hold spot each time. Consistency here is the secret to accurate shooting. When you set up your sight picture properly, learning how to use a bow sight becomes much easier because you do not have to fight awkward head positions to see your pins.

Splitting the Bowstring and Inserting the Peep

Once you mark the height on your string, you are ready to insert the housing. The goal is to divide the string strands completely evenly so tension remains balanced on both sides of the peep.

1. Relax the string tension: Place the bow in a string relaxation tool (bow press) and compress the limbs just enough to take the tight tension off the main string. If you are using a handheld string separator tool, insert the smooth plastic wedge gently into the bundle and rotate it ninety degrees to open a small pocket. Never force a separator tool into a rock-hard, fully tensioned string.
2. Count and divide the strands: Modern compound bowstrings usually consist of two different colored bundles twisted together, often with 20 to 24 strands total. If your string has two colors, split the colors so that one color runs along the left side and the other runs along the right. If the string is a single color, use a blunt plastic separator to divide the bundle into two equal halves. An uneven split (such as 16 strands on one side and 8 on the other) causes the peep to tilt sideways when drawn.
3. Align the peep grooves: Look closely at the outer edge of your peep sight. You will see deep channels running down the sides. Peep sights designed for compound bows feature angled grooves (often 35 or 40 degrees) so the body sits parallel to your eye when the bowstring comes back at an angle. Make sure the higher side of the angle faces upward toward the top cam.
4. Slide the peep into the opening: Slip the peep sight between the two separated strand bundles at your chalk mark. Seat the left bundle firmly inside the left channel and the right bundle inside the right channel. Center the unit so the strands grip the side grooves securely.
5. Release the press slowly: Ease off the bow press or slowly remove the handheld separator tool. Let the bowstring settle back under full tension. Watch the strands as tension returns to ensure they do not jump out of the side grooves.

Step back and draw the bow toward a target to confirm the initial height. Look through the aiming hole to see if it frames your front sight housing naturally. If the peep is slightly too high or too low, do not drag it up and down a fully tensioned string. Dragging the peep under tension burns the fibers. Put the bow back in the press or use your separator tool to relax tension before sliding the unit up or down.

Tying the Peep in Place with Wrapping Cord

A peep sight that is not tied in tightly can slip over time, throwing off your aim. Worse, an unsecured peep can fly out of the string like a bullet during a shot, potentially striking your face or the bow limbs. Tying it down requires three distinct sections: a tight wrap above the peep, a wrap below the peep, and a secure ring around the center waist.

1. Tie the lower bundle first: Cut an 18-inch piece of archery wrapping cord (serving thread). Start about one inch below the bottom of the peep sight. Tie a snug overhand knot around the string, leaving a two-inch tag end. Wrap the long end tightly around the string, moving upward toward the base of the peep. Keep each wrap right against the previous one, pulling the cord firmly so the wraps do not overlap or leave gaps.
2. Lock the split at the bottom of the peep: As your wraps reach the point where the string splits around the peep, continue wrapping tightly right into the base of the split. This holds the two strand halves firmly together and prevents the peep from creeping downward. Secure the wrap by forming a loop, passing the tag end through four times, pulling it tight against the wraps, and trimming the cord with sharp scissors.
3. Wrap the upper bundle: Cut another 18-inch piece of wrapping cord and repeat the exact same process above the peep. Start about one inch above the unit and wrap downward toward the top split. Pull each wrap tight to lock the upper strands together, preventing the peep from sliding upward. Finish the wrap with a locking knot and trim the excess.
4. Wrap the center channel: Cut a 12-inch piece of cord. Lay the cord directly into the deep center waist groove that runs around the outside circumference of the peep sight body. Wrap the cord completely around the peep body inside this track two or three times. Then, tie a firm square knot or constrictor knot on the back edge of the peep.
5. Melt the cord ends: Trim all remaining cord tag ends down to roughly one-sixteenth of an inch using sharp scissors. Take your lighter and bring the base of the flame slowly toward each tiny tag end. Do not let the flame touch the main bowstring strands. Let the heat melt the tag into a small, rounded plastic ball that sits flat against the knots. This melted ball acts as a physical stopper that keeps the knot from ever slipping loose.

When finished, take hold of the peep with your thumb and forefinger. Try to wiggle it up and down. If the peep moves even slightly, your wrapping cord is too loose. Cut the cord off carefully with a seam ripper or blunt-tipped scissors, making sure not to nick the string, and tie it again with greater tension.

How to Stop the Peep from Twisting Sideways

The most common headache archers face after installing a peep sight is rotation. You draw the bow, but the peep turns sideways, leaving you looking at the solid aluminum edge instead of a clear round hole. This happens because strings twist under tension, strands stretch, or the D-loop on your string rotates out of alignment.

Modern synthetic bowstrings are twisted ropes. When you pull the string back from rest to full draw, the twist tightens or loosens, rotating anything wedged between the strands. If your peep is turned sideways when drawn, check these practical fixes in order:

First, check your strand division. If you accidentally put 14 strands on the left side and 10 strands on the right side, the thicker side pulls with more tension, twisting the peep sideways at full draw. If the count is off, relax the string in a bow press and re-divide the strands so the split is mathematically even.

Second, adjust your D-loop (the small rope loop tied around the string where your release clips on). The D-loop acts as a steering wheel for your peep sight. When you hook your release aid to the loop and pull, the loop pulls the bowstring straight. Use needle-nose pliers or specialized D-loop pliers to grab the loop and twist it slightly around the center serving until drawing the loop forces the peep to face your eye square on.

Third, add or remove twists from the bowstring itself. If adjusting the D-loop does not solve the problem, put the bow in a string relaxation tool and disconnect the top bowstring loop from the cam peg. Adding a half-twist or full twist to the string changes the resting position of the peep sight. If the peep is turned slightly left at full draw, adding a half-twist often brings it back into perfect square alignment.

If you hunt from elevated stands, keeping this alignment rock-solid is especially critical. When setting up a bow sight for treestand hunting, your body bends at the waist, and any peep rotation will obscure your view of the target in dim morning or evening light.

Warning Signs to Take the Bow to a Pro Shop

Installing a peep sight is completely manageable at home, but safety always comes first. Bowstrings hold immense mechanical energy, and a failing string can cause severe facial lacerations or break your bow limbs. Stop immediately and visit an archery pro shop if you notice any of these warning signs:

• Cut or severed string fibers: If you see even one individual strand cut or frayed near the peep location, the structural integrity of the string is compromised. Do not draw the bow. Have a pro shop technician inspect the string or replace it.
• Fuzzy strands under the wrapping cord: If the string fibers look puffed up, fuzzy, or visibly chafed where the peep grooves sit, the peep has rough burrs or was forced along the string under tension.
• Persistent spinning despite adjustments: If the peep spins violently (turning 180 degrees or more during the draw cycle) even after adjusting the D-loop and adding string twists, the string may be poorly built or suffering from internal strand creep. A pro shop technician can balance the twists or install high-grade pre-stretched custom strings.
• Lack of safe equipment: If your bow has high-draw-weight limbs or severe beyond-parallel limb geometry that cannot safely accept a standard portable press, do not improvise with ratchets or clamps. Let a technician with a full-size commercial press handle the job.

Choosing the Right Peep Sight and Tools

When selecting a peep sight and installation gear, you need to match the hardware to your bow setup and how you shoot. Choosing the right design upfront eliminates frustration during the installation process.

Start by considering the aiming hole size. Smaller openings, such as 1/8-inch or 3/32-inch holes, provide sharper pin clarity for outdoor target archers shooting in bright sun. However, hunters generally prefer larger openings, such as 3/16-inch or 1/4-inch apertures. A larger aiming hole lets in significantly more light at dawn and dusk, while allowing you to center your entire front sight guard inside the window for quick target acquisition.

Pay close attention to string groove angles. Modern compact compound bows with short axle-to-axle lengths create a very sharp string angle when pulled to full draw. A standard peep sight with shallow grooves will sit tilted in a short bow, turning the round aiming hole into an unreadable horizontal oval. Look for sights with steeper 35-degree or 40-degree string grooves that compensate for sharp string angles, keeping the hole perfectly circular to your eye.

Consider whether you want a tubeless design or a rubber-tubed peep. Modern archers overwhelmingly prefer tubeless aluminum peep sights because they are quiet, lightweight, and do not slow down the string. But tubeless models require a well-tuned, high-quality bowstring that does not rotate. If your bow has an older factory string that twists unpredictably, a peep sight equipped with a flexible silicone alignment tube guarantees the hole snaps straight every time you pull the string back.

Finally, invest in a dedicated plastic string separator tool if you plan to do your own maintenance without a full press. High-visibility separator tools with smooth, rounded edges make it simple to inspect strand colors and separate fibers cleanly without scratching the protective wax coating on your string.

1

HAMSKEA Archery Solutions 1/8" Anti-Glare Raptor Aluminum Hunting Bow Sight

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• ARS Mark

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  9.6
• Brand
  Hamskea

Key specs2

String Groove Geometry

Dual 35-degree and 40-degree angles

Glare Control Design

Internal light baffles eliminate glare from low-angle sunlight, helping you maintain a clear sight picture without washed-out pins during early morning or late evening shots.

Pros & cons42

Pros

• Dual 35-degree and 40-degree string grooves allow pairing with different axle-to-axle bow setups
• Aerospace light baffling blocks off-axis light to prevent glare in low-sun angles
• Teflon-coated exterior provides a slick contact surface that limits bowstring wear
• All-aluminum body prevents breakage or warping common with plastic peep housings

Cons

• Fixed 1/8-inch aperture cannot accept smaller or larger interchangeable inserts
• Requires a bow press or string separator tool to split strands during setup

2

G5 Outdoors Meta Pro Peep Hunter Sight, Blue, Large/1/4

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• ARS Mark

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  9.4
• Brand
  G5 Outdoors

Key specs2

Aperture Geometry

1/4-inch convex circular opening

Bowstring Protection

Convex side channels reduce friction against string fibers, supported by a manufacturer no-cut guarantee to protect expensive custom bowstrings during high-speed shots.

Pros & cons42

Pros

• Convex interior aperture maintains a round sight circle even if the bowstring tilts slightly
• Convex string channels reduce bowstring surface contact to prevent string abrasion
• Wide 1/4-inch opening allows maximum light transmission for low-light hunting situations
• Non-abrasive anti-glare coating stops string cut and limits sun reflections

Cons

• Large 1/4-inch aperture offers less target centering precision for long-distance target shooting
• Bright blue finish stands out visually compared to traditional black bow hardware

3

VTurboWay Peep Sight Installer, Bow String Separator Tool, Archery Accessories,

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• ARS Mark

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  8.8
• Brand
  VTurboWay

Key specs2

Primary Function

Bowstring strand separator

Tool Application

Allows quick strand separation to insert or adjust peep height without needing a full-size bow press, though bowstring tension should still be handled carefully.

Pros & cons32

Pros

• Spreads bowstring strands apart so you can slide a peep sight in without cutting fibers
• Compact handheld design fits directly into an archery tackle box or pocket
• Smooth tapered probe guides strands aside without sharp metal edges catching fibers

Cons

• Listing lacks specific dimensional measurements and body material details
• Prying strands on high-poundage bows without relaxing tension requires extreme caution to avoid strand damage

4

Truglo Centra Peep Pro Durable Lightweight Effective Versatile Easily Attached

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• ARS Mark

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  8.8
• Brand
  TRUGLO

Key specs2

Housing Material

CNC-machined aluminum alloy

Alignment Configuration

Features an angled groove profile tailored to compound bow string angles, positioning the 1/8-inch opening parallel to the shooter's line of sight at full draw.

Pros & cons32

Pros

• CNC-machined aluminum body handles outdoor weather and resists string compression forces
• Angled string groove orientation aligns naturally with your eye at full draw
• Matte black exterior finish cuts sun glare around the aiming perimeter

Cons

• Fixed 1/8-inch opening lacks interchangeable inner clarifier or verifier lenses
• Installation requires relaxing string tension with a bow press or string tool

5

Linkboy Archery 37/45 Degree Hooded Peep Sight Compound Bow Peep

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• ARS Mark

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  8.6
• Brand
  Linkboy Archery

Key specs2

Optical Clarifier

6x magnification lens included

Aperture Versatility

• Five interchangeable cores from 1/32 to 1/8 inch
• Dual 37-degree and 45-degree string groove options
• CNC-machined aluminum hooded housing

Pros & cons42

Pros

• Includes five swappable inner core aperture sizes ranging from 1/32 inch to 1/8 inch
• Integrated 6x clarifier lens helps sharpen sight pin focus for target and hunting setups
• Dual 37-degree and 45-degree angle options accommodate steep string angles on short axle bows
• Hooded top shield blocks overhead sunlight and rain from hitting the lens surface

Cons

• Glass clarifier lens can collect dust or moisture in wet hunting environments
• Small threaded inner aperture cores require careful handling to avoid cross-threading

6

3 Sets Archery Peep Sight Compound Bow 1/4" 1/8" 3/16"

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  8.6
• Brand
  LOKHEIRA ARCHERY

Key specs2

Included Diameters

1/8, 3/16, and 1/4 inch

Sight Customization

Supplying three distinct aperture sizes in one pack allows archers to select the ideal opening for pin guard sizing, ranging from tight target view to wide low-light visibility.

Pros & cons32

Pros

• Three-pack includes 1/8-inch, 3/16-inch, and 1/4-inch sizes to evaluate multiple sight pictures
• Non-abrasive surface coating guards bowstring strands against rubbing and fraying
• Deep slot groove profile holds bowstring fibers firmly in place once tied in

Cons

• Fixed angle grooves may not align as cleanly on bows with extreme short axle lengths
• Listing does not specify base metal material alloy

7

- QI HUO JU - 2Pcs Archery Peep Sight Compound

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  8.2
• Brand
  - QI HUO JU -

Key specs2

Alignment Mechanism

Rubber tube self-aligning system

Twist Prevention

The attached rubber tubing connects to a bow cable, pulling the 3/16-inch aperture into direct alignment with your eye every time you draw, eliminating peep rotation problems.

Pros & cons42

Pros

• Elastic rubber tubing physically pulls the peep straight at full draw to prevent sideways twist
• Tubing anchor buckle attaches securely to the bow cable for reliable alignment tension
• 3/16-inch aperture balances adequate target light with precise sight pin centering
• Includes two complete peep assemblies for a backup replacement in the field

Cons

• Rubber tubing adds slight string weight and can snap or degrade over time in outdoor weather
• Listing does not detail the exact peep body material or tubing length

8

- QI HUO JU - Archery Peep Sight Tubing, 1/4"

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  8.0
• Brand
  - QI HUO JU -

Key specs2

Kit Contents

1/4 and 3/16 peeps plus separator tool

Installation Convenience

Combining a handheld string separator with self-aligning tube peeps provides the essential hardware needed to install and align an archery peep at home without a shop bow press.

Pros & cons42

Pros

• Bundles both 1/4-inch and 3/16-inch tube peeps with a bowstring separator tool
• Included splitter tool opens string strands without needing an expensive shop press
• Rubber tubing forces straight alignment on release without worrying about string twist
• Provides two common aperture sizes to match different pin guard housing diameters

Cons

• Tubing setup creates slight forward drag and requires routine inspection for rubber dry rot
• Tool requires slow, steady hand pressure to avoid snagging individual string strands

Last update on 2026-10-01 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API

FAQs

Do I need a bow press to install a peep sight?

You do not always need a full bow press if you use a handheld string separator tool made of smooth plastic. A bow press remains the safest method because it relieves tension completely, preventing any friction against string fibers. If you use a handheld separator tool, insert it gently and work carefully to avoid snagging or snapping individual strands.

How do I know what size aiming hole to use?

Your choice depends on whether you prioritize target accuracy or low-light visibility. Target archers prefer small 1/8-inch or 3/32-inch holes because they create a tighter sight picture and sharpen focus on distant targets. Hunters usually choose 3/16-inch or 1/4-inch holes so they can see clearly during early morning and late evening while framing the entire front sight ring.

Why is my peep sight turning sideways at full draw?

A peep turns sideways because of string stretch, uneven strand division, or a twisted D-loop. If you divided the string with more strands on one side than the other, the tension imbalance twists the unit sideways under draw force. Adjusting your D-loop alignment or adding a half-twist to the bowstring in a bow press will usually square the peep up with your eye.

Can I use a flathead screwdriver to open the bowstring?

No, you should never use a screwdriver, knife, or any metal tool to separate bowstring strands. The sharp, square edges of metal tools easily cut the microscopic synthetic fibers inside the string bundle. Even a single severed strand weakens the bowstring significantly, creating a dangerous hazard that can cause the string to snap under draw tension.