Putting is one of those parts of golf where a tiny mistake can turn a pretty decent round into three-putt city very quickly.
So when we got our hands on the Putting Arc MS3D by Golf Training Aids, we were pretty interested.
The idea is simple: guide your putter along a more consistent path, give you a reference for a square putter face and hopefully start more putts on line. But is that really the case?
Key Takeaways
If you don't have time to read our full Putting Arc MS3D review, here’s what you need to know.
- Costs around $89.99
- Helps create a more repeatable putting path
- Provides feedback for getting the putter face square when positioned flush against the arc
- Can be used from both sides depending on your stroke tendency
- Includes an adjustable mirror to help check eye position
- Heavy, premium construction keeps it stable during practice
- Works especially well as a quick pre-round putting warm-up
You can check out the Putting Arc MS3D by Golf Training Aids here! But if you prefer watching reviews in video format, here is our fully in-depth Putting Arc MS3D Review!
Is the Golf Training Aids Putting Arc MS3D Worth the Hype?
Price: $89.99
The Putting Arc MS3D is basically a physical guide that helps train your putter to move along a more consistent path.
Set it down on a relatively straight putt, line everything up, and use the curved edge as a reference while making practice strokes.
When the putter is positioned correctly and sits flush against the arc, the face should also be square. If it’s slightly open or closed, the putter won’t sit completely flush, giving you an immediate reference that something is off.
It sounds almost too simple, but after a few minutes with it, the appeal starts making sense. There’s also a mirror that sits on top and lets you check whether your eyes are positioned correctly over the ball.

First Impressions
The first thing we noticed was the quality. This thing has some weight to it. It doesn’t feel like cheap hollow plastic, and once it’s sitting on the green it stays pretty stable.
There are also small holes where you can place tees to stop it moving around during practice, and the underside has extra grip to help keep everything planted.
Then there’s the actual putting feel. Arvo tends to take the putter slightly too far inside, and the arc immediately forced him into a different path. It felt weird at first, but also very repeatable.

You Can Train From Both Sides
This was one of the coolest parts. The Putting Arc MS3D can be used from either side depending on what you’re trying to fix.
If you tend to pull the putter too far inside, one side gives you a physical guide that encourages a different path. If your stroke tends to move too far the other way, flip the setup and practice from the opposite side.
You can also start with simple one-handed drills, first using the lead arm, then the trail arm, before moving into normal two-handed strokes.

Does It Actually Build a More Consistent Stroke?
For our comparison, Carl first did his normal putting warm-up without the arc. Nothing terrible, but the stroke didn’t feel especially consistent.
Then he put the Putting Arc MS3D down and made around 50 practice strokes against the guide. It only took a couple of minutes, but the motion already started feeling much more repetitive.
Once we removed the aid and went back to regular putts, the biggest difference was the feel. The goal isn’t to make every putt automatically, it’s to build a more consistent stroke you can take onto the course.
A Really Good Pre-Round Warm-Up Tool
This is probably where we see ourselves using it most: as a quick pre-round warm-up tool on the practice green.
Drop it down, make 30–50 strokes and get that putting path feeling consistent before heading to the first tee. You don’t even need to hit balls the whole time.
A few minutes of repeated strokes along the guide is enough to give you a clear path reference, which makes the Putting Arc MS3D feel much more useful than something you only pull out during long practice sessions.

The Mirror & Face Alignment Are More Useful Than They Look
The included mirror is a nice touch because it lets you check whether your eyes are positioned correctly over the ball.
It can also be tilted depending on which side of the arc you’re using, so together with the stroke guide you’re working on both setup and putter path at the same time.
The arc also gives you a useful face-alignment reference. When the putter is sitting correctly and perfectly flush against the arc, the face should be square. If the face is slightly open or closed, it won’t sit completely flush, so you get immediate feedback on what a square face should look and feel like.
It doesn’t physically control face angle throughout the entire stroke, but it definitely gives you a helpful reference for recognizing when your putter starts square.
Our only small complaint is that the mirror doesn’t actually clip into place. It’s fine during normal practice, but a more secure attachment would make the setup feel even more polished.

Who Is the Putting Arc MS3D Best For?
The Putting Arc MS3D makes the most sense for golfers who want a more consistent putter path and square setup.
- Players who take the putter too far inside
- Golfers who push or pull putts because their stroke path changes
- Players who want a clear reference for a square putter face at setup
- Players who want a repeatable pre-round putting routine
- Golfers who prefer physical feedback instead of putting data
It won’t completely control what your putter face does throughout the entire stroke, but having the putter sit flush against the arc gives you an immediate reference for what a square face should look and feel like.

Pros & Cons
✅ Pros
- Premium, heavy-duty construction
- Builds a very repeatable putting feel
- Provides feedback on path and square face setup
- Can be used from both sides
- Adjustable mirror helps with eye position
- Excellent for quick pre-round practice
❌ Cons
- $89 is fairly expensive for a simple putting aid
- Mirror doesn’t clip securely into place
- Doesn’t physically control face angle throughout the entire stroke
- A carry case would make it much easier to travel with

Final Thoughts
We were a little skeptical about paying almost $90 for what initially looks like a curved putting guide, but after actually using it, the price started making a lot more sense.
It feels premium, gives you a very clear reference for your stroke path and square face setup and, most importantly, builds that repeatable putting feel surprisingly quickly.
It won’t automatically control the putter face throughout your entire stroke, but the flush setup gives you immediate feedback when the face is open or closed. If your putting stroke gets inconsistent or you want something for a quick warm-up before a round, the Putting Arc MS3D is one of the better putting aids we’ve tested.
Ratings
Carl's Rating
“For a putting training aid, I’d give this a solid nine. It feels premium, builds that stroke feel quickly and I can actually see us using it before rounds.”
Arvo's Rating
“I’ve used different versions of this kind of training aid throughout my golf career, and this is probably the most refined one I’ve tried. Complete S-tier putting training aid.”