Cobra Gravity Back Irons Specifications
Full factory loft, lie and length chart for the Cobra Gravity Back irons, 1999–2000.
- Years produced
- 1999–2000
- Category
- Game Improvement Irons
- Construction
- investment cast, backweighted low-profile perimeter-weighted cavity
- Material
- 17-4 stainless steel
- Set makeup
- 1–LW
Loft, lie & length chart
| Club | Loft (°) | Lie (°) | Length (in) | Swing wt |
|---|---|---|---|---|
| 1 | 16 | 60 | 40.25 | D2 |
| 2 | 18.5 | 60 | 39.75 | D2 |
| 3 | 21 | 60.5 | 39.25 | D2 |
| 4 | 23.5 | 60.5 | 38.75 | D2 |
| 5 | 26.5 | 61 | 38.25 | D2 |
| 6 | 29.5 | 61.5 | 37.75 | D2 |
| 7 | 33 | 62 | 37.25 | D2 |
| 8 | 37 | 62.5 | 36.75 | D2 |
| 9 | 41 | 63 | 36.25 | D2 |
| PW | 46 | 64 | 35.75 | D2 |
| GW | 50 | 64 | 35.5 | D2 |
| SW | 56 | 64 | 35.5 | D2 |
| LW | 60 | 64 | 35.5 | D2 |
Lofts and lies are the factory standard build. Individual clubs may differ if they have been bent, re-shafted or re-gripped during their life.
About the Cobra Gravity Back
The Gravity Back was Cobra's completely new iron for 1999, the first design of the Acushnet era to move on from the King Cobra oversize family. A distinctive Backweight bar behind the head positions the centre of gravity low and back in a lower-profile cast 17-4 stainless head, raising inertia and launch for golfers of all skill levels. The line ran from a 16-degree 1-iron to a 60-degree lob wedge, with the stock set sold 3-PW in steel or graphite, in right and left hand. Lofts are traditional — 33 degrees at the 7-iron and 46 at the pitching wedge — and every club is built to a D2 swing weight. Cobra published an offset column whose values run backwards relative to normal convention (negative in the long irons, increasing toward the wedges), so, as with the other Cobra records of this era, it is not reproduced here. It was followed by the CXI in 2000. Note that some listings date the Gravity Back 2000; Cobra's own 1999 page introduces it as new.
Stock shafts
- Cobra steel — steel · flexes: MSS, R, S, X
- Cobra graphite — graphite · flexes: MSS, R, S, X
Related models
- Predecessor: King Cobra II Oversize
- Later Cobra game-improvement iron: King Cobra SS Oversize
- Compare: Cobra Gravity Back vs Cobra King Cobra II Oversize
- Compare: Cobra Gravity Back vs Cobra King Cobra SS Oversize
Frequently asked questions
What is the loft of a Cobra Gravity Back 7-iron?
The Cobra Gravity Back 7-iron has a loft of 33 degrees, a lie of 62 degrees and a length of 37.25 inches.
What year are the Cobra Gravity Back irons?
Cobra introduced the Gravity Back in 1999 — its own site presented the line as new that year — though some retailers list it as a 2000 model. The CXI replaced it in 2000.
What makes the Cobra Gravity Back irons unusual?
A Backweight bar behind the low-profile cast head shifts the centre of gravity low and rearward, which raises inertia and helps the ball launch higher — an early take on the extreme rear-weighting later common in game-improvement irons.
Finding a used set
The Cobra Gravity Back ran from 1999 to 2000 and is no longer in production, so the used market is the only source. Search eBay, 2nd Swing, Golf Avenue and the PGA Tour Superstore trade-in listings, and check the loft and lie against the chart above before buying — sets this age have often been bent from standard.
- Cobra Golf official Gravity Back iron page (cobragolf.com/irons/models.htm), archived 1999-11-28 via web.archive.org — retrieved directly; supplies the full 1-iron-through-LW table (length, loft, lie, offset, swing weight), the 17-4 stainless backweighted cast head description, the MSS/R/S/X flex options, the Crossline grip, the 3-PW stock set and pricing, and introduces the model as 'the new Cobra Gravity Back irons', fixing 1999 as the announcement year
- GolfClubSpec.com Cobra Gravity Back entry (golfclubspec.com/iron_results.php?id=50), year 1999 — reproduces the same loft/lie/length ladder (its PW length cell misprints 37.75 where Cobra's own page reads 35.75) and the Crossline by Lamkin grip
Last reviewed 2026-07-29. Spot an error? [email protected]