Used Junior M2 Driver: How to Buy One Safely and Size It Right (2026)

By Ethan Brooks

Updated November 2026

A used junior M2 driver can be a smart buy for a growing golfer, but only if the length, flex and head condition match your child. This guide walks you through the checks that matter most before you hand over any money. Follow them and you will end up with a driver your child can actually swing well, not one that sits in the garage after a season.

Step 1: Confirm the Length Matches Your Child

Length does more than anything else to determine whether a junior driver feels right. Measure your child’s height and wrist-to-floor distance, then compare those numbers against a junior driver length chart. Most parents find the right range by standing their child in a tall, athletic address position and measuring from the floor to the wrist crease. You can also check the length of any used driver against the sizing rules in the Junior Driver Length Chart: How to Size a Driver by Height and Age (2026) article before you commit.

Shopping for one? See our guide: 5 Best Golf Tees for Driver Compared for Junior Golfers (2026).

If the club is too long, your child will stand too far from the ball and struggle to make solid contact. If it is too short, they will hunch and lose width in their swing. Both problems are common with secondhand clubs bought without measuring first.

Step 2: Check the Shaft Flex and Shaft Length

Flex describes how much the shaft bends during the swing. Junior drivers are typically sold in junior or ladies flex, and the wrong flex can cost distance and create a poor launch angle. A child with a moderate swing speed will usually do better with a more flexible shaft than an adult would use, while a faster-swinging kid may need something stiffer. Shaft length is a separate measurement, and it should line up with the sizing chart above. Ask the seller to confirm the flex stamped on the shaft or listed on the original spec.

Step 3: Inspect the Head, Grip and Shaft Condition

Used drivers rarely fail in dramatic ways, but a few problems are worth checking before purchase:

Head: Look for cracks around the hosel and face, deep dents, and loose or missing weights.
Shaft: Sight down the shaft for bends or kinks, and check the tip for cracks or fraying near the ferrule.
Grip: Replace grips that are slick, hard or torn. Grips are inexpensive to swap and a worn one can throw off your child’s hand position.
Headcover and loft: Confirm the loft is marked and the headcover is intact if it is included.

Step 4: Make Sure the Driver Fits Your Child’s Hand Position

Check whether the grip size and lie angle suit your child. A lie angle that is too upright or too flat changes where the toe and heel sit on the ground and can pull shots left or push them right. If the seller is local, let your child take a few practice swings in a store or at a driving range before buying. Their comfort at address is a strong indicator of whether the fit is right.

Quick buying checklist

Measure your child’s height and wrist-to-floor distance.
Compare the driver length against the sizing chart.
Confirm flex and shaft length with the seller.
Inspect the head, shaft, ferrule and grip for damage.
Have your child take practice swings if possible.
Plan to replace the grip if it is worn.

Common Mistakes to Avoid

Buying a driver for the size your child will grow into instead of the size they are now.
Ignoring flex and focusing only on the brand name.
Skipping the head inspection because the club looks clean on the surface.
Assuming a used driver from a different model year will fit the same way. Check specs for the exact model.
Forgetting that a worn grip can change how your child holds the club.

Recommended Gear

A fresh grip is usually the first upgrade worth making to a secondhand driver, and a simple grip-installation kit makes the job easy at home. A headcover protects the head during transport and keeps it looking good for a future buyer. A junior driving training aid can help your child learn a consistent swing path while they get used to the club.

Golf grip replacement kit: View on Amazon
Junior golf driver headcover: View on Amazon
Junior golf swing training aid: View on Amazon

FAQ

Is a used junior driver safe to buy?

Yes, as long as you inspect the head, shaft and ferrule for cracks or bends before purchase. Replacing a worn grip is an easy additional step. If you are unsure about structural damage, a club fitter or pro shop can take a look.

How do I know if the flex is right for my child?

Flex should match your child’s swing speed and strength. If the shaft feels too stiff and the ball flies low or to the right, the flex may be too firm. A professional fitting is the most reliable way to confirm it.

Should I buy a used driver that is longer so my child can grow into it?

Buying oversized is usually a mistake because it affects posture and swing mechanics right away. It is better to buy a driver that fits now and upgrade when your child outgrows it.

Conclusion

A used junior M2 driver can be a practical choice when the length, flex and condition all match your child. Measure first, inspect the head and shaft carefully, and confirm the fit before you buy. With those checks done, you are much more likely to end up with a club your child enjoys using.

Ready to choose one?

About Ethan Brooks

Ethan Brooks is part of our editorial team and reviews and edits our junior golf gear guides, checking product details against manufacturer specifications and owner feedback.

About the author

Ethan Brooks

Ethan Brooks writes reviews and buying guides for Junior Golf Results.