Cobra King Forged ONE Length Irons Review

Game-Changer or Gimmick?

This is my official review of the Cobra King Forged ONE Length Irons.

I got my hands on  these exciting new irons and have used them for several rounds of golf now.

These are my overall thoughts and the performance I saw with them.

Cobra King Forged ONE Length Irons – Overview
In the golf industry many things are driven by sales and perceived innovation. Every year a company comes out with new sets of irons. I realize people want new, shinny and hopefully better. But sometimes that isn’t the case, sometimes new is just that; new. The Cobra King Forged ONE length irons are actually something completely new, different and potentially better although similar to the King Forged Tec Copper Irons. While they aren’t the very first company to produce one-length irons, they are the first major OEM to offer them as a regular iron in the their line up. So are they a Game-Changer or a Gimmick?
As you probably already know these irons came about with the Cobra signing of Bryson DeChambeau.  He had a very successful college career and has already shown that he is ready for the PGA Tour.  His study of swing mechanics,  convinced him that one length irons would allow him to take a variable out of the equation for a more consistent swing.  While that might be great for a PGA pro, but what about the everyday golfer?  Will it work for you?
I don’t want to spoil the rest of the review, but I’ll say this, these iron are not a gimmick.  The Cobra King Forged ONE length irons hold real potential for golfers who put these in the bag, but they also may not be for everyone.  I’ll walk through my experience with these irons and share who might get the most from this new concept.  I think that for some golfers, these will be game-changers.
Let’s start with some basics.  The Cobra King Forged ONE length irons have a head very similar in design to some previous Cobra models like the AMP forged and Fly-Z+ irons.  I’ve had great success with these irons and think that they are a great design.  However when you go to a one length iron, you can’t just slap a regular 4-iron head on a 7-iron length shaft.  The lie angle, weight and feel are going to be very uncomfortable.  Cobra designed each head to work for the proper iron, because they are all the same length as a 7-iron.  They all have the correct CG, lie angle and swingweight to feel right and get what you need out of each club.  Using KBS Tour Flt (flighted) shafts makes sense too so that you can get a little extra kick in the long irons, even though the shaft is shorter.  The short irons are also brought down just a little to balance out the longer shaft.

When I took the Cobra King Forged ONE length irons to the course I had rather surprising results.  I expect to struggle with the short irons because of the longer shafts and pure the long irons because of the shorter shafts.  It ended up being the exact opposite.  I  hit some of the purest and tightest 9-irons and pitching wedges I’ve hit in a long time and found some struggles getting straight and long 5-irons.  It kind of threw me for a loop.  The more I dug into it, the more I realized that the long irons need that extra length to generate the club head speed I need to get the distance I’m used to hitting with those irons.

One interesting find, especially in the short irons was my ability to hit the tweener shots.  There are certain yardage that fall between clubs in my typical set-up.  Because of the longer shafts I could de-loft the lesser club and because of the longer shaft I could get those could extra yards.

As a former High School golf coach, I would have loved to have suggested the Cobra King ONE Length irons to about 1/2 of my team.  As many golfers are learning the game, they have trouble bottoming out their swing at the same point with every club in the bag. (making solid contact right at the ball) Taking that variable out of the equations would have been immensely valuable for them.  If you don’t make consistently good contact with the golf ball, I think these will be a wonderful solution for your game.

As for my game, I would need more than 5 rounds to fully embrace the one-length iron concept.  I’ve been playing golf for 32 years and I don’t want to say I’m too old to learn something new, but there is a slight mental hurdle to jump when it comes to hitting a 4 iron that feels more like a 7-iron.  I have to admit, a lot of my issue came from trusting the club to get the job done.

Flightscope X2 Launch Monitor

  • Cobra King ONE Length – PW
    • Spin: 8851 rpms
    • Launch Angle: 35.7*
    • Dispersion: 3.0 yds
    • Club Head Speed: 85.7 mph
    • Ball Speed: 102.1 mph
    • Total Distance:  125.9 yds
    • Carry Distance:  120.1 yds

Flightscope X2 Launch Monitor

  • Cobra King ONE Length – 8-iron
    • Spin: 7517 rpms
    • Launch Angle: 28.4*
    • Dispersion: 3.4 yds
    • Club Head Speed: 86.3 mph
    • Ball Speed: 109.5 mph
    • Total Distance:  157.2 yds
    • Carry Distance:  154.7 yds

Flightscope X2 Launch Monitor

  • Cobra King ONE Length – 5-iron
    • Spin: 6017 rpms
    • Launch Angle: 23.1*
    • Dispersion: 4.3 yds
    • Club Head Speed: 86.8 mph
    • Ball Speed: 110.7 mph
    • Total Distance:  180.5 yds
    • Carry Distance:  175.0 yds


The Cobra King Forged ONE length irons are the real deal, especially in the right hands.  They are certainly not for everyone, but for a beginning golfer, especially a young strong one, I think these could really revolutionize their game.  If you don’t have 30 years ingrained into your head of how to swing different clubs, then these could be Game Changers for your iron game.  They feel great, the head is super solid and forgiving, and if you want one swing, then these are your clubs. 

Check the price on Amazon here

For more information:

Pros and Cons

+ Excellent head design
+ One-length simplicity
+ Super accurate short-irons
+ More ability to hit the “tweener” shots

– Potential long iron struggles


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About The Author

Ryan Heiman – Founder and Head Author of Independent Golf Reviews
Ryan has over 10 years of experience testing and writing golf reviews of nearly every brand out there.
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