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KING Forged ONE Length - Single Irons

The KING Forged ONE LENGTH irons debut as COBRA’s first ever single-length forged iron set. Inspired by rising PGA star Bryson DeChambeau.

F7 One Length



Availability: In stock

Please allow 3-5 additional days for custom clubs to be built before shipping.

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One Setup One Swing


Proper setup includes foot positioning, spine angle and ball position, and many other variables. These variables change as you switch between longer and shorter length clubs, causing more room for error. With one setup and one swing you can simplify the entire process. Every player has their favorite club and for many, it's a 7-iron. With COBRA's One Length irons, you will find new confidence in your game, allowing you to play any iron in the bag as if it were your trusty 7-iron.


One swing for all of your shots

Long irons for more consistent distance

Tighter shot dispersion on approach

Short game accuracy improvement

F7 One Length


Model Loft Lie Offset
Steel Swing
4 23°  62.5°  2.0  37.25"  D2.5  RH
5 26°  62.5°  1.8  37.25"  D2.5  RH
6 29°  62.5°  1.5  37.25"  D2.5  RH
7 33°  62.5°  1.3  37.25"  D2.5  RH
8 37°  62.5°  1.3  37.25"  D2.5  RH
9 41°  62.5°  1.3  37.25"  D2.5  RH
PW 45°  62.5°  1.3  37.25"  D2.5  RH
GW 50°  62.5°  1.3  37.25"  D2.5  RH



ModelFlexWeightKick PointTorqueTip Diameter
KBS Tour FLT Stiff 120g Mid Mid 0.355
KBS Tour FLT Regular 110g Mid Mid 0.355


COBRA Lamkin REL 360

COBRA Lamkin Ace Crossline Blue

Customer Reviews 11 item(s)

Mixed set of Cobra Forged Tour and One Length
Review by Wayne - 5/6/2019

I felt like there was some validity to the concept of single length irons, and wanted to give them a try. What I didn't want to do however was hit a pitching wedge that was the same length as a seven iron, so I decided to build a set of traditional length irons from the GW to the 8 iron and go single length from the 7 iron to the 4 iron. I am a 4 handicap, but I am 52 now and thought this might help my game. I can tell you that I am a big fan of the single length irons from the 7 to the 4 iron. I hit those irons consistently better now, and was surprised at the distance increase and consistency I've experienced. Maybe the single length irons for the entire set are a good fit for some, but for me, the combination of traditional length clubs to the 8 iron and single length thereafter have been a great fit! I had to build my set by buying individual clubs and crossing over from the Cobra Forged Tour to the Cobra Forged One Length halfway through the set, but its been worth it. I wish they'd provide a "conbo" set of irons in this configuration, but either way, I would recommend this set up for low handicappers who want to dip a toe into the one length concept but also maintain the traditional length for the shorter irons.

Cobra Forged ONE
Review by Jonathan - 4/15/2019

Amazing looking and feeling irons combined with the ONE length technology makes an unbeatable combination...

4 iron, 7 1/2 iron shaft
Review by Tom - 3/18/2019

Excellent. Hit is solid and lost zero distance w shorter shaft. Will very likely purchase a full set.

Review by The9hit - 3/18/2019

My accuracy has increased tremendously with my long irons since I’ve converted to one length irons. Also, the wedges are to die for around the greens.

Game changer
Review by David - 1/27/2019

I was having problems hitting my irons which got so bad I was ready for a change. Did some research on one length clubs and liked the concept. Went to the local golf shop and from the first swing I noticed a much higher ball flight and consistency. Wound up getting a set and love them. I’m even using the wedges. Only draw back is I don’t hit the long irons as far as my old set.

Love this club
Review by tomoldfrt - 9/6/2018

I bought the 60 degree, pitching wedge, and lob wedge in this series. I just love them to death. For what ever reason, I can hit the PW, GW perfectly. The 60 stops on a dime and seems to be magic! Right next to the hole almost every time.

One length long irons experiment
Review by JD74 - 6/1/2018

I obtained the Cobra Forged One 5&6 iron as part of an experiment to see how one length clubs in my long irons might help/affect my game. I still game standard length in 7 through wedges.
The clubs themselves are top quality. Heads not too scary small..just the perfect size of a player’s forged cavity back for my eye. Feel is great when pured. A little help is provided by the rubber insert when caught a bit off the sweet zone. Typical feedback from a forged iron when strike is poor. Pretty much exactly what I want in terms of feedback from an iron head.
I’m still figuring out if I like the distance, spin and trajectory factors with the KBS S+ shafts. I plan to hit them on my coaches Trackman in next couple of weeks. I have a feeling I’ll reshaft with Modus3 120. Trajectory appears a bit low on 5 iron for my preference...much lower than the 6 iron.
I put the One 5/6 in my bag right next to my standard 5/6 gamers and have had chance to play some different shots on course playing a solo round. Overall, I’ve had zero issues adjusting to the length and enjoyed hitting some rewarding approach shots.
I think this might end up being my eventual direction during the course of this season with end result being: 4-6 irons one length and 7-wedges standard length.
I also game Cobra F8+ driver and F7 FW&hybrid and nothing is kicking these sticks out of my bag in all my testing. Overall great job Cobra for pushing the tech and innovation to new levels. You’re making some excellent equipment and if anyone viewing this is not at least putting Cobra in the mix for your gear testing, you are missing out!

Review by SwanP - 11/11/2017

Changed over recently from Standard fitted MP-54's to these. Though Im only 3 games in on these, I can see that the consistency for having one swing keeps things simple mentally and for muscle memory.
I know it won't be for everyone, but for me I think Im ready to part with my other clubs. I definitely like the idea and so far with little time with them, they have proven to keep my a bit more controlled and consistent.
Ive been gaming the 4-7 and just recently ordered GW, 56 and 60. If I stick with it, I will likely get a Utility Iron too.
Lastly - this set hits very nice. Sound, feel and feedback...very familiar feeling. First time I played Cobra Irons and have to say Im a fan (of these Forged One clubs at least).

This system works!
Review by JD - 6/17/2017

Swapped these in for some old Mizuno MP60s. I have had very consistent gapping across the set and having one swing for every iron has made my practice time much more productive. I wish I had known about these sooner!

Really works
Review by Doc - 3/23/2017

I've been cutting my irons the same length since the middle 90's and it's the only way to go... I'm so glad to see a club manufacturer doing it for me. Particularly Cobra whose clubs I've been using since the S9's came out... Bought a set of their new single length and Love them... if u want better results with ur golf game get a set too⛳️

Love them
Review by JJ - 3/8/2017

Happy to not think about all the quirks of different length clubs

Same swing = consistent strikes

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