Cobra One Length irons are the first single length clubs manufactured by a tier 1 golf supplier. Cobra has invested in this technology and concept through both this set, the forged one length iron set, and their sponsorship of Bryson DeChambeau.

Cobra One Length Irons Bottom Line

These irons look and feel like a well-put-together set of golf irons — the top-line, back, and bottom of the irons have all been thoughtfully designed, from the contrasting silver/black on the back to the matte silver highlight on the sole. The sweet spots seem quite large as the carry distances showed little variance on slightly off-center hits.

The price of this set is near the middle of the market, and the value of what you get vs. the price is quite high.

I would recommend this set to golfers who have already tried single length irons and who are completely bought into the concept. If you have not tried single length irons before, the price may be a bit high for an experiment, although the re-selling market for these clubs is quite strong if you decide after trying them for several rounds that single length clubs are not for you.

Who are these clubs for?

These clubs are designed for mid- to high-handicap golfers who have difficulty with clean contact throughout their current set of “standard” irons. The single length shafts eliminate the need to use multiple ball positions and swing planes, increasing the likelihood of center-face, ball-first strikes.

If you’re a low- to mid-handicap golfer and have a very high swing speed, you may be interested in trying the forged version of these irons:

Cobra King FORGED One Length Irons Review

Look & Feel

The top-down view of the irons is classic and clean, which a narrow top line.  The 109 gram steel shafts seem just right for club balance producing a D1 swing weight.

The design of the irons does change as you move through the set — the SW and GW look like blades:

Cobra King One Length GW

The PW through 6-iron look like cavity back irons:

Cobra King One Length PW

The 5-iron and 4-iron look like muscle back irons:

Cobra King One Length 5-iron

I’m assuming that the change in design through the set is the result of Cobra’s “Tecflo” initiative.  Tecflo is successfully used in this set to move the CG up/down according to whether Cobra wanted to launch the ball higher or lower in different irons. From a play-ability standpoint, you don’t really notice much difference in the work-ability or launch angle of the ball from club to club, which is as it should be — technology in clubs should be both transparent and beneficial to maximize the golfer’s perceived value without causing distraction.


Cobra King One Length Irons retail at $699, although you can find them cheaper on Amazon and eBay. While this is not the cheapest set of single length irons you can find, they’re certainly not the most expensive either — the top-end of the market is around $1,200 per set. Given the quality of these clubs, I would say that the price is a good value for what you get.

Having said that, you should be completely bought into the concept of single length clubs before spending this much on an iron set — there are much cheaper single length irons alternatives if you just want to get your feet wet without spending much.

You can see the price points of all manufacturers’ single length sets in my Single Length Buyers Guide.

Accuracy vs. Descent Angle

The trade-off given for increased accuracy is of course a shallower descent angle of the ball as it falls from the sky. This trade-off means that on the 4, 5, and 6 irons’ stronger loft leads to more roll-out when the ball lands on the green.

Personally, I’m perfectly OK with the roll-out since I’m happy to have the long irons hit the green more often in the first place.


The gaps in the set are fairly consistent between 13 and 15 yards from club to club. On the day that I recorded the data below, I hit the 7-iron better than average, which threw off the gaps between it and the 6-iron and 8-iron. Since the gap between the 6 and 8 is 27 yards of carry, I would say that the 7-iron would typically carry about 172 yards for me.

Here are some of my “solidly struck” shots using the Cobra King One Length clubs:

Club 5 6 7 8 9 PW GW
Carry 198.8 185.9 176.0 158.7 145.2 129.1 115.8
Total 205.1 189.8 179.2 161.2 147.1 130.5 117.6
Rollout 6.3 3.9 3.2 2.5 1.9 1.4 1.8
Apex 33.4 35.7 37.8 34.9 37.2 35.2 29.7


Technical Specifications

The complete irons weigh 432 grams, with a head weight of 273 grams. The lie of 62.5 degrees remains constant through the set since all shafts are 37.25″ long. The offset ranges from 0.7 for the sand wedge to 5.5 for the 4-iron.

As you can see in the tables below, the Cobra King One Length lofts are stronger than a typical set of irons from club to club, which is necessary given the single length shafts — longer shafts hit balls farther, so with a shorter shaft, a stronger loft is necessary to hit the ball the same distance.

Typical Iron Set 3 4 5 6 7 8 9 P A G S L
Loft (degrees) 21 24 28 32 36 40 44 48 50 52 55 60
Lie (degrees) 59 60 61 61.5 62 63 64 64 64 64 64 64
Weight (grams) 239 246 253 260 267 274 281 285 285 285 296 296
Offset (mm) 4.8 4.2 3.8 3.6 3.4 3.2 3.1 3 2.9 2.9 2.5 2.5


Cobra King One Length 3 4 5 6 7 8 9 P A G S L
Loft (degrees) n/a 20 23 26 30 35 40 45 n/a 50 55 n/a
Lie (degrees) n/a 62.5 62.5 62.5 62.5 62.5 62.5 62.5 n/a 62.5 62.5 n/a
Weight (grams) n/a 273 273 273 273 273 273 273 n/a 273 273 n/a
Offset (mm) n/a 5.5 5.1 4.6 4.1 3.8 3.6 3.2 n/a 1.0 0.7 n/a


Where You Can Buy Cobra King One Length Irons

Cobra King One Length Irons

Cobra King One Length IronsCobra King One Length IronsCobra King One Length Irons BackCobra King One Length GripCobra King One Length Grip

Where to buy Cobra King One Length Irons

Feel (when striking ball)
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Just call me the single length irons guy -- I'm a recreational golfer who has historically shot in the low 100s and who is on the way to the low 80s thanks to a set of unconventional single length clubs. You can read about my single length irons journey here.