1950-1981 • Lightweight Colt D-Frame • Second Model Focus

Colt Cobra

A collector guide to the lightweight Colt Cobra, from the original 1950-1981 alloy-frame run through the 1970s Second Model, with production years, variants, serial-number ranges, known issues, and value trends.

Greg Cook Collection • Colt Cobra Second Model • .38 Special • Updated May 26, 2026

The Colt Cobra from the mid-1970s is one of my favorite revolvers and my all-time favorite revolver to carry. It has the size and balance of the Detective Special, but with an alloy frame that makes it disappear on the belt in a way the steel-framed guns never quite do.

The Cobra was Colt’s lightweight answer to the classic small-frame carry revolver. Instead of treating it as a cut-rate variant, Colt built it around the same basic D-frame concept that made the Detective Special famous, then reduced weight with an aluminum alloy frame. The result was a six-shot revolver that carried more like a pocket gun than its capacity suggested.

Collector note: the Second Model Cobra is the 1970s version most collectors recognize by the full shroud around the ejector rod, the heavier barrel profile, the Baughman-style ramp front sight, and the more hand-filling stocks. It feels less delicate visually than the earlier Cobra, but it still carries with the lightness that made the model famous.
Nickel Colt Cobra Second Model revolver from the 1970s
Second Model Colt Cobra with the shrouded ejector rod profile associated with the 1970s production guns.
Colt Cobra lightweight revolver close view
The Cobra kept the familiar Colt D-frame proportions while trimming weight for daily carry.

It was an earlier version of the Colt Cobra that Jack Ruby used to kill Lee Harvey Oswald. The serial number of Ruby’s Colt was 2744LW, with the “LW” suffix standing for Light-Weight. The Jack Ruby Colt Cobra was later returned to his estate and sold at auction. An anonymous New Jersey gun collector reportedly paid $220,000 for it.

Cobra, Aircrewman, Courier and Agent

Colt’s lightweight double-action revolvers included the Cobra, Aircrewman, Courier and Agent. The Cobra was the most enduring of the group. The Aircrewman was tied to a very specific military requirement and is often recognized by its aluminum alloy cylinder and Air Force-style grip medallions. The Courier had a short production life and is much harder to encounter. The Agent was the lower-priced, more compact companion to the Cobra, aimed at deep concealment and everyday utility.

For collectors, the family relationship matters. The Cobra is not just another snubnose; it sits at the crossroads of Colt’s postwar police, detective and civilian carry market. It carries the same basic vocabulary as the Detective Special, but the alloy frame changes the entire personality of the revolver.

The 1970s Second Model Colt Cobra

The Second Model Colt Cobra arrived in the early 1970s and ran through the end of original Cobra production. Its most obvious visual change was the shrouded ejector rod. That one feature gives the 1970s Cobra a stronger, more finished appearance than the earlier exposed-rod guns. It also visually ties the Cobra to the broader direction Colt was taking with its later D-frame revolvers.

On a 2-inch .38 Special Cobra, the shroud changes the whole look of the gun. The revolver still feels compact, but the barrel has more presence. The ramp front sight looks more modern. The stocks fill the hand better than earlier small stocks, which matters because a lightweight .38 has a different recoil personality than a steel Detective Special.

  • Frame: lightweight aluminum alloy D-frame
  • Capacity: six-shot cylinder
  • Common chambering: .38 Special
  • Other chamberings: .32 Colt New Police, .38 Colt New Police and .22 LR examples exist
  • Key 1970s feature: shrouded ejector rod
  • Collector appeal: classic Colt action, light carry weight, and Detective Special proportions

My own interest is practical as much as historical. I paid $400 for my 1974 example in 1997 and $650 for the 1978 gun in 2002. Those numbers now feel like snapshots from another era of collecting. The best examples are no longer casual purchases; they are collectible Colt revolvers with real condition sensitivity.

Finish is everything on these guns. A bright nickel or high-polish blue Cobra can look wonderful under glass, but the alloy-framed Cobras also show careless handling quickly. Use extreme care in cleaning the finish. I have seen many examples at gun shows that appear to have thousands of tiny scratch marks from being wiped with the wrong kind of cloth. A clean original finish is part of the story, not just a cosmetic detail.

1978 Colt Cobra and reading glasses on computer keyboard
A 1978 Colt Cobra still has the size, weight and mechanical character that made these revolvers popular as practical carry guns.

A carry revolver with collector gravity

The Second Model Cobra represents an important moment in revolver evolution. By the 1970s, the market was changing. Lightweight carry revolvers had already proven their value, but shooters wanted better sights, better grips and a little more protection around exposed working parts. Colt’s answer was not to abandon the classic D-frame idea, but to refine it.

That is why the 1970s Cobra still works emotionally for collectors. It is not as visually delicate as the earliest Cobras, and it is not as heavy as the Detective Special. It sits in the middle: old Colt craftsmanship, real-world carry weight, six-shot capacity, and a profile that looks like it belongs under a sport coat in the last years before the semi-automatic pistol began taking over the defensive market.

Some of you will recall that after a 36-year hiatus Colt brought the Cobra name back in 2017. But it was not the same gun at all. The newer Cobra has its own merits, but the original lightweight Cobra has the feel of a different manufacturing age. The 1970s Second Model still carries the scent of old Colt: polished metal, carefully fitted action parts, and a small revolver that was built before “compact” meant polymer and magazine extensions.

Production Years and Transition Years

The original Colt Cobra was introduced in 1950 as a post-war lightweight companion to the Detective Special. It remained in Colt’s catalog until 1981. Collector discussion usually separates the original alloy-frame Cobra into an early exposed-ejector-rod First Model and the 1970s Second Model, also called Second Issue, with the shrouded ejector rod.

PeriodCollector meaning
1950-1965Early post-war lightweight Cobra period. These guns generally have the slim barrel, exposed ejector rod, six-shot cylinder and the classic alloy-frame D-frame feel.
1966-1972Late First Model and transition years. Collectors pay close attention to grip-frame and stock details, because Colt was simplifying D-frame production during this era while the Cobra still retained the exposed ejector rod.
1973-1981Second Model / Second Issue period. The 1970s guns are identified by the shrouded ejector rod, heavier barrel profile, ramp front sight and larger wood stocks. This is the configuration shown on this page.
2017-modernColt revived the Cobra name with an all-stainless small-frame .38 Special +P revolver. It belongs in the Cobra story, but it is a separate modern design and not the alloy-frame D-frame collector model.

There is no true pre-war Cobra. The useful “pre-war vs. post-war” comparison is between the Cobra and the earlier Colt small-frame lineage that led to the Detective Special. The Cobra itself is a post-war product, shaped by the demand for lighter off-duty, plainclothes and civilian carry revolvers.

Variants, Barrel Lengths, Finishes and Rare Configurations

The Cobra is easiest to understand as a lightweight alloy-frame D-frame, but the collecting field is broader than a single 2-inch .38 Special snubnose. Chambering, barrel length, finish, stocks and documentation all change the conversation.

Barrel lengthsThe 2-inch .38 Special is the best-known Cobra. Three-inch and four-inch .38 Special guns are scarcer and attract collectors who like shootable D-frames. .32 Colt New Police examples appear in 2- and 3-inch form, while .22 LR Cobras are most often associated with 3-inch barrels.
FinishesBlue and nickel are the two key finish discussions. Nickel Cobras are eye-catching and can bring a premium when original, but polished alloy-frame guns are unforgiving: scratches, cloudy plating, edge wear and refinishing questions are easy to see.
Grip typesEarly guns have a different grip feel than the later D-frame guns. After Colt shortened the grip frame, factory stocks could make the revolver appear full-size while hiding the shorter frame underneath. Second Model stocks are larger and more hand-filling.
Special family modelsThe Aircrewman, Courier and Agent are related lightweight Colt D-frame revolvers rather than ordinary Cobra sub-variants. The Aircrewman is the military-linked lightweight model, the Courier is a scarce short-production .22/.32 model, and the Agent is the more compact economy companion.

Factory hammer shrouds, unusual chamberings, early LW serials, documented law-enforcement or personal provenance, correct boxes, and original stocks can all change the value tier. Treat rare claims carefully: special-order barrels, nonstandard grips, replacement barrels and refinishes should be supported by a Colt Archive Letter whenever the value depends on them.

Serial Number Ranges and Year Clusters

Colt lightweight D-frame serial-number references often group the Cobra, Aircrewman, Courier and Agent together. Early guns commonly use an LW suffix, while later guns move into letter-prefix and letter-suffix ranges. Use the table below as a collector-observed guide, not as final proof of ship date.

Year or periodKnown / observed serial anchorsCollector note
19501LW start pointBeginning of Cobra-family lightweight serial range.
1955Approximately 33900LWEarly exposed-ejector-rod period; check original stocks and finish.
1960Approximately 94800LWMature First Model period; .38 Special examples dominate.
1965-1968154100LW through 245700LW anchorsLate LW-suffix era and mid-1960s D-frame transition context.
1969-1972274000LW-275115LW, then A/B/C letter rangesTransition years. These are especially important because issue labels can be confused if only the date is considered.
1974-1975F60001-F99999, H60001-H99999, and M-series clustersEarly Second Model years with shrouded ejector rod and ramp sight profile.
1976-1978M-prefix, M-suffix and R-suffix clustersClassic late-1970s Second Model range; the 1978 example on this page belongs to this collector period.
1979-1981Late original-production ranges vary by sourceConfirm with Colt’s database and, for high-value examples, a Colt Archive Letter.
Serial-number warning: Colt’s own serial lookup describes its results as approximate and not comprehensive. If a Cobra does not appear in the database, or if multiple models appear, that does not automatically mean the gun is wrong. For valuation, provenance, and exact shipment details, order archival documentation.

For broader date research, also see the site’s firearm serial-number guide page and the Colt database link in the sidebar.

Collector Notes: What to Look For

The Cobra rewards careful inspection because small details have an outsized effect on value. A revolver that is merely “a Colt Cobra” is one thing; a Cobra with original finish, correct stocks, strong lockup, a clean bore, proper serial-date context, box, papers and a Colt Archive Letter is a much stronger collector piece.

  • Fit and finish: bright original blue or nickel finish, sharp edges, clean rollmarks and honest holster wear are preferable to heavy polishing or uncertain refinishing.
  • Accuracy and feel: good examples have the smooth Colt double-action feel and practical fixed sights that made the Cobra popular as a carry revolver.
  • Desirable years: 1950s LW-suffix guns, transition-year examples, and clean 1973-1981 Second Model guns each appeal to different collectors.
  • Desirable barrel lengths: the 2-inch .38 Special is iconic, while longer-barrel .38s and non-.38 chamberings can be harder to find.
  • Rare markings: unusual agency markings, property marks or military-associated claims should be documented rather than assumed.
  • Packaging: correct box, serial-numbered label, manuals, hang tags, factory accessories and period holsters can add meaningful value.

Collectors should also look for original stocks, correct grip medallions, clean screw slots, matching wear patterns and a barrel profile that agrees with the serial-date story. A 1970s shrouded-ejector-rod gun with convincing original finish is a different value proposition from an earlier gun wearing a replacement later barrel.

Known Issues and Inspection Points

The Cobra’s lightweight frame is the feature that makes it special, but it also means condition and handling history matter. This is a collector inspection checklist, not gunsmithing advice.

IssueWhat collectors check
Timing and lockupCheck cylinder carry-up, lockup, endshake and overall action feel. Older Colt double-actions require a qualified revolver specialist when correction is needed.
Finish wearAlloy-frame Cobras show scratches, edge wear, cloudy nickel, cleaning damage and holster wear quickly. Aggressive polishing can soften rollmarks and destroy collector value.
Parts availabilitySome D-frame parts and original stocks are harder to replace than buyers expect. Correct Colt parts matter more than generic fit.
Replacement barrelsA shrouded barrel on a serial range that suggests an earlier gun may indicate a barrel replacement. Confirm with documentation before paying a Second Model premium.
+P ammunition historyOriginal alloy-frame Cobras predate modern +P marketing, and Colt did not recommend +P use in its alloy revolvers. Evidence of hard use should be considered during inspection.
Aircrewman confusionAircrewman, Courier and Agent similarities can lead to mistaken identity. Military or rare-family claims need extra documentation.

There is no widely discussed factory recall story that defines the ordinary Colt Cobra market. The issues that matter most are originality, mechanical condition, finish condition, correct configuration and documentation.

Colt Cobra with carry gear
The original Cobra remains interesting because it bridges collecting and use. It is old enough to matter, but practical enough to understand immediately.
Greg Cook with Colt Cobra and Bucheimer holster in 2025
Colt Cobra and Bucheimer holster still seeing service in 2025.

A small revolver with a long shadow

The 1970s Colt Cobra Second Model is not important because it is rare in the way a special-order target pistol might be rare. It is important because it represents a kind of practical craftsmanship that is increasingly hard to replace. It was light, compact, smooth, handsome and serious. That combination is why good examples still draw attention from collectors who understand that some guns were made to be carried, but later became collectible because they were made so well.

Greg Cook

About the Author

Greg Cook writes about collectible firearms, family history, military memories and the stories behind old guns. Gun Collectors Club is a personal collection site, not a retail firearms business. The firearms shown are not for sale.

Holsters made in the U.S.A. by small business brands remain part of the story for many classic carry revolvers.

Colt Cobra Holsters

Research Sources Consulted