Exclusive Web Extra: Handguns Of WWII Part 4

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The U.S. Model 1917 .45 ACP
(Colt Version).

Part 4 Of A 12-Part Series.

Without a doubt the U.S. Army’s adoption of Model 1917 .45 ACP revolvers was a “make-do” situation. And also without a doubt it “made-do” very well. The United States had been almost as bad as the British for getting involved in a war while woefully ill-prepared. When President Wilson’s administration declared war on Germany in April, 1917, the American military had no fighting airplanes, no field artillery, no machine guns, not enough rifles and far from enough Colt Model 1911 .45 autos to go around. The government-owned Springfield Armory had been making some 1911s under license from Colt but they had to stop handgun manufacture to focus on production of Model 1903 rifles. Remington Arms Company was in the process of tooling up for 1911 production, but deliveries were in the far future.

Back in 1909, as an interim measure, the U.S. Army and U.S. Marine Corps had adopted Colt’s large frame New Service revolver chambered for .45 Colt. Everyone knew an autoloader was coming, so the military only needed enough 1909s to fill holsters until 1911s were in full production. Now hold that thought.

The first step in World War One’s handgun shortage solution came from an engineer at Smith & Wesson. Their large N-frame revolver could easily handle the rimless .45 ACP, except a star-type extractor as used on double-action revolvers needed a cartridge rim to push against for extraction. Mr. Unknown Engineer figured out the concept of little stamped steel “half-moon” clips holding three of the rimless .45 ACPs, supplying something for extractors to push against. The U.S. Government thought that was a good idea and gave Smith & Wesson the go ahead to make .45 ACP revolvers. We’ll cover their model in a future installment.

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The Colt Model 1917 at left still wears its World War I original blue finish.
The one at right has been Parkerized, indicating it was pulled from storage
and issued during World War II.

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As the ammo box indicates, putting rimless .45 ACP rounds in spring
steel clips made it possible to adapt that caliber to revolver use.

The Colt

Since the American military was already familiar with Colt’s New Service double action revolver, they also gave Colt a contract to produce .45 ACP revolvers using the half-moon clip idea. Colt’s Model 1917s were all of a type. They had a six-round cylinder capacity, used a double-action firing mechanism, came with 5 ½” barrels and were mounted with two-piece smooth walnut grips. Sights consisted of a groove down the frame’s topstrap for a rear sight and a thin blade front sight silver-soldered to a groove in the barrel.

Instead of the bright blue finish given Colt’s commercial handguns, their military version had a much rougher polish giving a dull blue finish. Then to top it off, a lanyard ring was installed in the bottom of the grip. All were stamped “U.S. Model 1917” also on the butt and “United States Property” under the barrel.

Here’s an interesting bit of trivia. To the best of my knowledge Colt and Smith & Wesson Model 1917 revolvers were the only American military weapons to get the same designation even though they were completely different handguns.

Sources vary as to exact production figures for Colt’s version of the U.S. Model 1917 .45, but it amounted to something over 150,000 in only a 14 month period. Here’s another bit of interesting trivia. Between 1899 and 1944 Colt made a few over 355,000 New Service revolvers. That means the U.S. Model 1917 accounted for about 40 percent of the total.

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Holsters for U.S Model 1917 changed between the world wars. Holster
at left is early version meant for the revolver to be carried on the soldier’s
right side with butt forward. Holster at right is later version also meant to
be worn on soldier’s right side but this time with butt rearward.

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Duke’s three types of ammunition used to feed his Colt 1917 revolvers.
At left is issue military round with 230 grain FMJ bullet. Next is Lyman
bullet #452374 (220 grains) with loaded round, Oregon Trail Bullet
Company 227 grain roundnose with loaded round and Zero Bullet
Company 230 grain FMJ with loaded round.


According to Bruce Canfield’s book “U.S. INFANTRY WEAPONS OF WORLD WAR II” about 96,000 Colt 1917s survived World War I service and were then put into government storage. When World War II began, again with the U.S. military being ill-prepared, many thousands of those stored .45 revolvers were put back into service. However, before issue, they were inspected, repaired if need be, and then given a phosphate finish commonly called “Parkerizing.” That last step makes it very easy for today’s collectors to sort World War I U.S. Model 1917 .45s from World War II ones.

Most use of Colt Model 1917 .45 revolvers were not in the front lines in World War II. Mostly combat units got what U.S. Model 1911 autoloaders were available and military police, POW camp guards and assorted auxiliary troops got the revolvers. That said, front line troops are famous for begging, borrowing, or stealing any sort of handgun to pack along in combat. Therefore, many photos exist of soldiers and marines packing 1917 sixguns.

My World War II handgun collection contains two Colt U.S. Model 1917 .45s. One retains its World War I blue finish, meaning it most probably did not see service in World War II. At least it likely wasn’t officially issued. My second one does have a Parkerized finish and so likely was issued to someone. In fact it could have been issued to my own uncle, James Virse, who served as a rifleman in the 3rd Marine Division on Guam in 1944. In the 1990s he told me even after the island was declared secure, orders were that marines were to go armed at all times. That was because there were numerous Japanese stragglers roaming the jungles. The last one didn’t surrender until 1972! My uncle said he scrounged a .45 revolver and holster and carried it instead of his 10 pound M1 Garand.

And here is one last bit of trivia. Holsters for U.S. Model 1917 revolvers come in two forms. Both were flap holsters, but the World War I versions were meant to be worn on the right side but with gun butt forward. By World War II the design changed to have the revolver worn on the right side but with the gun butt to the rear.

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Duke’s Colt Model 1917 .45 shoots right to its sights with his handloads.
This target was fired at 25 yards and Duke was doing so well with the
first four shots that he got excited and pulled the last one way to the right.

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A Colt Model 1917 .45 caliber revolver such as this must have been a
great comfort to many American combat troops in their foxholes at night.

Shooting ‘Em

My Colt U.S. Model 1917 .45s get shot. Aside from Black Hills Ammunition 230 grain FMJ factory loads, they also get handloads with 230 grain FMJs, 225 grain commercially cast roundnose, or my own home cast bullets weighing 220 grains from Lyman mould #452374. Any of those bullets go over 5.4 grains of Hodgdon’s HP38. All those combinations duplicate original military ballistics closely enough to shoot to the Colts’ sights. I am pretty darn good when shooting them in single action mode and pretty darn hopeless when trying to hit something double action.

The U.S. Government was lucky to have a handgun manufacturing giant such as Colt to help when faced with a war emergency — twice!
By Mike “Duke” Venturino
Photos Yvonne Venturino

>> Click Here << To View The Handguns Of WWII Series

11 thoughts on “Exclusive Web Extra: Handguns Of WWII Part 4

  1. KMacK

    Interesting thing too: Between the revolver and the automatic there was only one round’s difference in ammo supply. My bet is that the revolver, while it took one less round than the auto (1911) it probably hit more accurately since people of that day and age were still a lot more used to a revolver than an auto. The auto didn’t really gain prominence until the 1970’s while the revolver kept going round and round and spitting lead for over a century. A century from NOW…wonder what we’ll be shooting then…?

  2. Lou Riggio

    Great revolvers, all right! Too bad Colt never brought back the New Service and Shooting Master. I bought an S&W 1917 about 1957 and it shot to the sights, too, with cheap WWII or Korea surplus ammo. Regret trading it for a Colt 1902 .38 Auto that, by the way, shot very well, too. (Wish I had ’em today.)

  3. Wes

    Great article, I really enjoyed reading it. I have quite an interest in the 1917s, both Colt and S&W.
    I have a new S&W Model 22, 1917 Classic in 45 ACP.
    Beautiful handgun!

  4. Racker

    Both are sturdy and hard hitting handguns. The actions on the Smiths seem to be a bit finer but both could be used under the worse circumstances and work well. I recall my father telling me that in the Pacific Islands, they saw a lot of these revolvers (the USMC always seems to be near the bottom of the supply train) but those that had one did not feel left out; in many cases, they felt that they had a more reliable handgun than the 1911. I would not want to get into that argument but those big revolvers are tough. I have had a Colt and I own a Smith 1917. It is interesting that the action part on the Smith 1917 is smaller than my Smith 625.

    I always wondered why they did not make 6-shot loaders in WW1 or WWII. The 3-shot half-moon clips are fast but the 6 shot moons are faster.

    1. KMacK

      Probably the reason for the three-shot moons rather than six-shot moons has to do with combat reloads. You are less likely to waste a round with a three-shot moon, since using a six-shot moon would mean shooting the revolver dry and then reloading. A three-shot half-moon would be easier to reload without wasting unfired rounds left over in a six-shot moon, since soldiers tended to reload whenever they got the chance; not when the pistol ran dry.

  5. David Patton

    My stepson has a 1917 Colt he inheritied from his great-grandfather. I have been trying to find some half-moon clips for him–any suggestions? Thanks.

  6. RMorales

    Colt also made the same model 17 in .45 Colt, not ACP. Those were sold or given to several countries as military aid. Very collectible, many have the beautiful stamping of national seals of those countries, colt blue, not parkerized. Beautiful guns and very effective side arms.

  7. JMcCall

    A difference between the Smith and the Colt Model 1917 – I have read – involves the cylinder area. The Smith has a shoulder in the chamber and can be fired without the half moon clip if necessary while the Colt has a staight-through bored cylinder chamber and must use the clips to position the rounds properly to address the firing pin. Dunno.

  8. Roy Jaruk

    With regard to the holsters: there is a simple explanation. In 1917, when it came to carriage of pistols there was only one sort of soldier who would routinely pack one: the cavalryman. The U.S, Army had not assimilated the lesson that Cavalryman + Cavalry Horse / Machine Gun = Dead Horse + Dead Trooper.

    In the days of shining sabres and blowing hat plumes, cavalry went into action with a sabre in the right hand, a pistol in the left hand, and the reins in their teeth. In order for each hand to grasp its weapon, the grip had to point forward on the opposite side, so it could be drawn quickly and effectively. Therefore, as the sabre was on the left, the pistol had to be on the right; and it had to be holstered butt-forward to be taken by the left hand.

    The fact the holster was configured for cavalry but was issued to the infantry must have irritated more than one infantryman, because drawing a butt-forward pistol with the “wrong” hand is difficult. I do know that a revolver holster for cavalry with a swivel so the barrel always points straight down was issued to the horse troopers and meant to be carried on the right for a right-hand draw exists. I have seen them, and own two that were made for motorcycle cops carrying 4 inch barreled .38 Special revolvers; but I don’t know what the issue date on the Army holster might be. It would be interesting to learn if the swiveling holster was issued before or after World War I.

  9. chris

    I have a colt model 1917 45acp D A piece-parts model. Please help me price it if possible. I was told it was 1 of 2000 made? And was told some of these weapons having special marking on the barrel were 1-1000? Any history or info of any kind would be very helpful. Thank You:chris

  10. gus savarese

    Anyone know the value of one? My father has one my uncle brought back from the war. It has a government issued stamp under the barrel

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