KING F7 ONE Length Irons

The KING F7 ONE LENGTH irons debut as COBRA’s first ever single-length iron set. Inspired by rising PGA star Bryson DeChambeau.

F7 One Length


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


The KING™ F7 ONE Length™ irons make their debut as COBRA’s first ever single-length iron set. Inspired by our relationship with PGA TOUR Professional, Bryson DeChambeau, The KING F7 ONE utilizes the same TECFLO constructions as the KING F7 along with PWRSHELL™ Faces and Precision Milled Grooves. However, the KING F7 ONE features constant 7-iron lengths throughout the set and each head has been re-engineered for proper geometry to deliver optimized trajectory and distance gapping from long irons to wedges. The end result? A simpler, easier way to play.

F7 One Length



  • Steel: 5-GW
  • Graphite: 5-GW

Model Loft Lie Offset
Graphite Swing
Steel Swing
4* 20° 62.5° 5.5 37.25" 37.25" D0 D1 RH/LH
5 23° 62.5° 5.1 37.25" 37.25" D0 D1 RH/LH
6 26° 62.5° 4.6 37.25" 37.25" D0 D1 RH/LH
7 30° 62.5° 4.1 37.25" 37.25" D0 D1 RH/LH
8 35° 62.5° 3.8 37.25" 37.25" D0 D1 RH/LH
9 40° 62.5° 3.6 37.25" 37.25" D0 D1 RH/LH
PW 45° 62.5° 3.2 37.25" 37.25" D0 D1 RH/LH
GW 50° 62.5° 1.0 37.25" 37.25" D0 D1 RH/LH
SW* 55° 62.5° 0.7 37.25" 37.25" D0 D1 RH/LH
*Custom Only


Fujikura Pro 63i

ModelFlexWeightKick PointTorqueTip Diameter
Fujikura Pro 63i - 7 iron S 66g Mid Mid 0.370
Fujikura Pro 63i - 7 iron R 63g Mid Mid 0.370
Fujikura Pro 63i - 7 iron Lite 62g Low Mid 0.370

True Temper KING F7

ModelFlexWeightKick PointTorqueTip Diameter
True Temper KING F7 - 7 iron Stiff 109g Mid Mid 0.370
True Temper KING F7 - 7 iron Regular 107g Mid Mid 0.370


COBRA Lamkin REL - Blue

COBRA Lamkin REL - Blue

Customer Reviews

Thanks Cobra Review by Oldlad
I'm 72 (73 next week) and decided to treat myself to the F7 One irons as a birthday present. I thought I would add my experience with the irons I bought a few days ago. I hit a decent shot (90mph driver speed) but irons very variable these days. I have had 3 range sessions and the first session was mixed as I tried to find a swing that worked. By the end of session 1 I felt the clubs had much promise but I had a fair bit to learn. In the second session I heeded the advice I found on the 1irongolf website which advised getting used to the 9 iron first. It sounded daft, why not the 7? Anyway, that advice worked beautifully for me and I felt my hand position relative to my setup 'grooving' in a way I never felt before (possibly seeing the importance of that setup applying for all clubs). I then found the pitching wedge and gap wedge easy to hit from the same setup. I moved up to the 8 iron and it was OK but something was not right, it was not so easy. For the 3rd session I had a 'lesson' with a pro I trust and he solved the 'problem' and I imagine others might find this useful. He agreed it was fine for my setup to be the same for all clubs except for one thing - allowing for different 'angles of attack' I was associating the various lofts with. He suggested I play the 9 iron and higher lofted clubs with the ball just right of centre (which I has already gravitated to), but the 8 iron and 7 iron ball position should be central and the 5 and 6 irons slightly forward of centre. Not talking big differences in ball position but it made all the difference in the world as the 5 iron now became as easy to hit as any of the others and it flew with plenty of height too and around 175 yards carry. I noticed that Bryson DeChambeau said he plays his longer irons a little forward too, so it all adds up. One setup and swing just slight variance in ball position. This solution seems to produce quite normal looking trajectories and distances for me but a quality of striking I had long forgotten. (Posted on 31/10/2018)
Excellent clubs Review by Marksey
Upgraded from Cobra King 2 (Yes I know antiques) and treated myself to these clubs. Excellent clubs and hit the 5 iron like a rocket. Excellent clubs especially if you are a taller player starting out. Cannot recommend them enough. (Posted on 18/08/2018)
AWESOME!!!! Review by Paul B
As a 65 year old newbie to this fabulous game (only started in April 2017), trying to develop a decent swing with clubs of all different shaft lengths was proving both difficult and frustrating.

Discussing the benefits of a single shaft length club with my trainer, he suggested I look at the KING F7 ONE Length Irons with the Fujikura Pro 63i - 7 iron R flex shaft.

So, found a retailer and tried them, liked them and bought them.

Now on the range and on the course, I have confidence that my set up and ball striking will be consistent with all irons. Just learning now to gauge distances with each club.

What has been the result? I now have a handicap of 22 and am consistently going round in sub 90 – so my handicap will soon fall to below 20!! Am enjoying the game more, not being the slowest player in the group and looking forward to the warmer weather, dry air and drier course, so I can get even more distance.

THE BEST PURCHASE I HAVE MADE!! (Posted on 21/12/2017)
Amazing Review by Weesannyh
Bought full set last week after trying them at the range. Played three rounds on my local course. I average 95. Not anymore, 3 rounds 79, 83 and 80. Anywhere inside 150 yards these clubs are frightening. Never back spinned a ball ever. Now I can't seem to stop. I would recommend these clubs to any average hacker like me. Same swing every time. It just doesn't make sense to buy anything else. (Posted on 10/11/2017)
It's clever and it works Review by Paul
Would I like to be good enough and consistent enough to play regular cubs ? Yes I would, but here's the catch, I'm not. I struggle around the low 20's handicap and my irons let me down. So I tried the one length concept, and providing you force yourself to swing the 5 iron like the gap wedge it really works. I've always had to use hybrids in mid to long irons, not anymore. My hitting greens in regulation has gone up by over 30% in 5 games with the new irons. Are they everyone's solution, probably not, but the work for me. (Posted on 26/09/2017)
Back in love with golf Review by Kev
The one set up and swing theory behind these clubs is spot on. A few minor adjustments at first both in set up and between the ears and you will be amazed. Consistently flushing the low irons like i never have before and i love the longer longer length of the gap and sand. They allow a slightly more upright stance that for me just allows a better visual and easier execution of the shot. Hope the one lengths are here to stay. (Posted on 09/09/2017)
5 iron difficulty Review by Liso
Great clubs, but if I had another chance I would not but the 5 iron has I find it difficult to hit. Had ping irons previously and could even hit my 4 iron well (Posted on 20/07/2017)
Impressive Review by Bonetti
Just returned from a cobra one length fitting/demo day and I wasn't expecting to like them
after everything I've read. But they are great. Absolutely no problem with the shorter irons, in fact the dispersion and distance was better than my custom fitted ping g irons. The 5 iron wasn't an instant success but after 10-15 shots and some slight adjustment this also proved to be better and more consistent than my own 5 iron.
I've only ever been an average iron player playing off 10 but I've come away from the range thinking this is the best golf equipment investment I have ever made, time will tell. (Posted on 11/07/2017)
Great Irons Review by Stumpy
I play off 15 and thought I'd give the One Lengths a go to try and improve my overall game.
Having played 3 rounds with them I can honestly say that I feel so much more confident hitting the longer irons. I had no problem converting to the same ball position for all the shots, in fact it made it so much easier.
The ball flight is so much more consistent and compared to my previous TM M2's I feel I'm hitting longer and definitely more accurate. Of course, conditions affect the roll out but I'm now able to use the carry distance more effectively
Loving them so much I'm going to order the 4 and SW today to complete the set. (Posted on 07/07/2017)
Outstanding Review by Darren
12 months ago I was playing off 30hcp, the reason for this was down to back issues meant I struggled with any iron lower than an 8 and any higher than a 6

I had done a lot of research on single length clubs from various manufacturers ranging from clones to cobras but soon realised if I wanted supreme engineering with a great network of support I had to go with the cobra f7 one length.

I hit the range and started with my seven iron to get a few of the new clubs and instantly liked the feel off the face, the flight was amazing, nice trajectory and nice draw shape too.

I moved to the other clubs and saw the exact same flight from each club just with different distances.

The pitch and gap wedge where the biggest changes in my game with the new clubs, I'd have traditionally took a 7 iron and chip and run from anywhere within 30 yards of the green where as now I'm getting anybwedge out of my bag and hitting shots that friends are in awe of!

I'm now shooting off 18hcp after only a month with these clubs - one swing, one stance - one fundamentals to thing about has changed my game dramatically.

Well done cobra for such a great product.

(Posted on 30/05/2017)
Soooooo easy Review by Richard
I am a pretty hopeless golfer so thought these must be easier to hit that the multiple length clubs. Sure enough, they are like switching from a manual gearbox car to an automatic - so much less to worry about. My confidence has increased and so my swing speed has shot up. Highly recommended. (Posted on 26/05/2017)
Good solid irons Review by Luffy
I got fitted at my local club on a cobra fitting day. I have always had a problem hitting my five iron, however I was able to hit the one length five without any rally drama. The shorter clubs will take a little time to get used to and I have only been on the range with my new clubs. I love the look of them especially the GW and SW. I will purchase the 4 iron once I get used to the feel and when I can afford it. I will out on the course this week to see how they perform but keeping it simple with one swing is just what the doctor ordered for my game. (Posted on 21/05/2017)
Great looking irons Review by Phill
Still a bit hit and miss,although still getting used to them. The 5,6,&7 easy the 8,9&PW bit more difficult to get head around due to extra length. (Posted on 20/05/2017)
Can't hit my irons Review by Trickster2204
Bought set of CobraKing F7 irons,at fitting day was creaming my 7 iron like never before. Played my first round on Sunday and five times from the centre of the fairway I carded a 7,8,8,9 and a 9 cause I just could not hit my irons. Contacted Cobra Golf to ask what I am doing wrong,is it me or the clubs.will keep you posted. (Posted on 02/05/2017)
briliant Review by trev
first time out best club I have ever hit recommend them 100% (Posted on 11/04/2017)
WOW Review by ricki c
I tried these out and straight away I had to have them. IM picking them up tomrrow and cant wait! (Posted on 02/03/2017)
Convert and Amazed Review by Carl Pugh
Firstly I just want to say I love these new one length irons. I have played 4 times with them but last weekend was my first proper match. The 5,6 and 7 are effortless with great trajectory. The 8 and 9 have been the 2 clubs I needed convincing were for the better but once over the fact that each setup is the same as is the swing they are just great . I even managed to get such great loft off the pitching wedge the the ball held with a little back spin. Around the green I love the fact that the 8 and 9 are awesome and hold when chipping on . I even gave my mates a go , the used the 6 iron off a raised tee and hit the green with the ball sticking for him on a par 3 , my other mate used the gap from 80 yards out hit the green and immediately said he was amazed .

So my first proper match was a great success with me hitting the ball so well we beat the other team on the 13th hole having been 6 up.

I cannot give these clubs any better review other than I have ordered the 4 and SW to complete the set (Posted on 01/03/2017)
Not what I expected..... Review by Andy W
Tried the Cobra F7 ONE irons at the Cobra Demo Day last week. I started with the 5 iron and was flushing the ball immediately with a great flight and really good yardage numbers. Next onto the 'shorter' clubs and this was the biggest surprise for me. When hitting the 9-GW, the longer length seemed easier to hit than the standard length and the high trajectory and spin numbers were perfect for nice soft landings on the firm greens at my club. Next morning I ordered a set and can't wait for them to arrive, hopefully next week, and all I will say is don't listen to the traditionalists and cynics, go see for yourself and be ready for a surprise..... (Posted on 20/02/2017)
Oh yeah Review by Mags
Bought these 2 weeks ago after being fitted.It took a few days to get my head round not trying to force the 4 and 5 iron and getting the ball position sorted after that ..WOW ,my yardages are so consistent and the gapping between the irons so good ,single firgures here I come.All I need now is Cobra to create a driver the same length (Posted on 19/02/2017)
WOW Review by Paul
As an average 8 h/c I found these irons SO easy to hit as long as you imagine your hitting a seven iron and don't try to do the work for the club. (Posted on 11/02/2017)
The gapping works Review by Ged the Blue
Had a good hit with these on the range on Tuesday and got fitted for them yesterday. If you're concerned about the gapping - don't be! Also, despite what some reviews say, the 5 iron gets up in the air fine and I don't have a fast swing speed. At least try them out, they're great. (Posted on 03/02/2017)
new experince Review by Mike the Pike
I would love to try this new model of clubs, if I could hit all my irons the same as My 7 iron then look out pals i am after you (Posted on 27/01/2017)
Shocked Review by Big Kev
Only tried these irons on the range but I was shocked how good my strike was,and all my numbers were brilliant the same as my M2 tour irons in fact I went straight away and ordered a set
(Posted on 18/01/2017)

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