D3-M Mallet Heavy Putter Midweight® - Black Finish

4 reviews

30 Day Guarantee

We are confident that the Heavy Putter™ technology will improve your putting. In fact, we are so confident that we will supply you with Free Professional putting lesson videos as well as a 30 Day Guarantee that if you are not putting better after 30 days, we will take the putter right back for a refund!


Please allow 1 week for your order to ship as all putters are built to order 

The D3-M mallet design putter with high MOI incorporates the patented counter balance weighting technology in our MID WEIGHT category. The D3-M is face balanced and has a double bend, heel mounted shaft orientation with a half shaft of offset. The unique head design raises the center of gravity, which together with the elongated alignment line, encourages consistent sweet spot contact. The D3-M Mid-Weight putter uses a proprietary shaft with a 200 gram counter balance weight inserted in the grip end of the shaft. This creates the necessary counter weight to give you more control of your stroke, producing a balance point 75% higher than conventional putters to eliminate the excess wrist in your stroke. The D3-M putter uses a Winn mid-size grip to produce an extremely tacky, but firm feel.


  • 3° 
  • 70° 
  • 32”-35”
  • CNC Milled
  • Right
  • Proprietary steel
  • +/- 400 grams
  • Counter balance weight in grip end of shaft = 200 grams
  • Winn Mid-size
  • Proprietary Stainless Steel
  • Included 

Heavier Mass: The Heavy Putter's overall weight engages the body's larger stable muscles, resulting in a more consistent pendulum stroke.


Core Center of Gravity: The Heavy Putter's center of gravity is closer to the human body's core CG, resulting in greater stroke stability.


Higher Center of Gravity: The Heavy Putter's higher center of gravity reduces force on the wrists.


With a head mass just a few grams heavier than a conventional club, our Heavy Clubs get their name from the addition of the tour proven back weighting system found in every club we produce.


The 37% higher balance point produced by the back weighting system leads to improved body mechanics affecting the swing's plane, tempo, transition, impact and balance providing higher accuracy and control.

Customer Reviews
4.8 Based on 4 Reviews
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Filter Reviews:
    John M.
    United States United States
    Putter review

    Still trying to get use to it,as I had a blade still putter before. Overall I think I will get use to it.

    Golf Anything US

    I hope you like it! Please reach out to me at if you have any questions.

    Ed O.
    United States United States
    Good customer support

    Customer support was very good, answering some questions about the Boccieri putters before ordering.

    Duane B.
    United States United States
    Took a little getting used to

    But now I'm liking this stick. I had never putted with a counter balanced putter so the first few holes were an adventure. Now I find the heavier head and sole design help me pull the club back lower without concern about drag. Also, this putter seems to add a bit of top spin which helps me hold the line. Now if I can learn to read greens I may make a few more putts!

    Kirby F.
    United States
    D3-Mallet Putter

    It was was easy to order, it was shipped quickly and I really like the putter. There is one issue, the grip is starting to come apart and I’ve only used it twice

    Golf Anything US

    Hello Kirby, That is a very odd occurrence. I am sure we can take care of it for you. Can you please send some pictures of the grip to so we can figure out what has happened. Thank you!