Smith & Wesson Model 15

Smith & Wesson Model 15
Smith & Wesson Model 15
	Smith & Wesson Model 15
Type	Revolver
Place of origin	United States
Specifications
Cartridge	.38 Special
Feed system	6-round cylinder

The Smith & Wesson K-38 Combat Masterpiece, Revolver Model 15 is a six-shot double-action revolver, with adjustable open sights, built on the medium-size “K” frame. It is chambered for the .38 Special cartridge and is fitted with a 4-inch (100 mm) barrel, though additional barrel options have been offered at various times during its production. Originally known as the “K-38 Combat Masterpiece”, it was renamed the Model 15 in 1957 when all Smith & Wesson revolvers were given numerical model numbers. It is a shorter barrel version of the Smith & Wesson Model 14 Target Masterpiece and essentially an adjustable-sight version of the seminal Smith & Wesson Model 10 (“Military and Police”) revolver with target shooting features. The main production run of the Model 15 was from 1949 through 1999. It was discontinued for approximately a decade until 2011, when a re-tooled version was re-released under S&W’s Classics Revolvers line.

History[edit]

The Smith & Wesson K-38 Combat Masterpiece Revolver Model 15^[1] is a derivative of the classic 1899 K-frame (medium frame) Military and Police .38 S&W Special (aka .38 Special) six-shot double-action revolver. The M&P underwent steady evolution throughout the 20th century and S&W spun off several variations as separate models in the post World War II years. One of these was the K-38 Target Masterpiece, which began production in 1947. The Target Masterpiece included a number of new and/or special features, including a six-inch barrel with a narrow rib to provide a level sight plane, a Partridge front sight, a micrometer click rear sight, S&W’s .375” short-throw hammer, a trigger adjustment for overtravel, and improved grips.^[2] Noting the accuracy of the Target Masterpiece, a number of police departments and the FBI soon requested the same revolver with a four-inch barrel and a Baughman Quick Draw front sight. The result was the K-38 Combat Masterpiece. The major distinction between the K-38 Target Masterpiece and the K-38 Combat Masterpiece is the barrel length and the front sight.^[2]
In 1957 the K-38 Combat Masterpiece was renamed the Model 15 when all Smith & Wesson revolvers were given numerical model numbers. (The Military & Police and the Target Masterpiece were renamed the Model 10 and Model 14 respectively.) The model number is stamped on the frame behind the cylinder yoke, so it is visible (only) when the cylinder is open. A number of production and engineering changes have been made throughout the years, some of which are noted by a dash number suffixed to the Model number (15-1, -2, -3).
Over the years the Model 15 has been produced with several barrel lengths, with 4″ (standard) and 2″ (1964–1988) being the most common. In 1972 S&W released a stainless steel version as the Model 67. In 1997 the hammer and internal lockworks were modified from an on-the-hammer firing pin / internal hammer block to a floating firing pin / MIM flat hammer, and kept the hammer block that, unlike a transfer bar safety design, moves up with the trigger pull. The hammer hits a transfer bar, transferring the strike to the firing pin, while the block in a hammer block system moves down with the trigger pull, unblocking the hammer from the firing pin, allowing the hammer to strike the firing pin. These two safety systems work oppositely, but achieve the same goal of only allowing the gun to fire when the trigger is pulled all the way.
The Model 15 was a popular sidearm for law enforcement and was the standard issue sidearm of the U.S. Air Force Police from 1962 until 1992 when it was replaced by the Beretta M9 pistol.^{[citation needed]}
Production of the Model 15 was discontinued in 1999 when Smith & Wesson was purchased and reorganized, although a couple limited run “Heritage Series” models were released in 2001 and 2002. In 2011 Smith & Wesson re-introduced the Model 15 (15-10) under their Classics Revolvers line, newly machined, with a shrouded redesigned barrel, and a built-in trigger lock (located just above the cylinder release thumbpiece on the left side).^[2]

Specifications[edit]

Caliber: .38 S&W Special
Capacity: 6
Barrel: 4” (standard configuration)
Length overall: 9 1/8” With 4” barrel
Weight loaded: 34 oz. With 4” barrel
Sights: Front – 1/8” Baughman Quick Draw on plain ramp. Rear: S&W Micrometer Click Sight, adjustable for windage and elevation.
Frame: square butt with grooved tangs
Stocks: checked walnut service with S&W monograms
Finish: S&W blued carbon steel with sandblasting and serrations around sighting area to break up light reflections
Trigger: S&W grooving with adjustable trigger stop
Ammunition: .38 S&W Special, .38 S&W Special Mid Range, .38 + p

^[3]

Engineering and production changes timeline[edit]

As the K-38 Combat Masterpiece Revolver Model 15 evolved the following engineering and production changes were made:^[2]

1949: K-38 Combat Masterpiece introduced
1955: Delete upper sideplate screw
15 (1957): K-38 Combat Masterpiece continued as the Model 15; stamping of model number
15-1 (1959): Change extractor rod, right hand to left hand thread
15-2 (1961): Delete trigger guard screw, change cylinder stop
1964: Introduce 2” heavy barrel
15-3 (1967): Relocation of rear sight leaf screw
1968: Delete diamond grips
15-4 (1977): Change to put gas ring from yoke to cylinder; pinned barrel eliminated
15-5 (1982)
1986: Introduction of 6” and 8-3/8” barrel
15-6 (1988): New yoke retention system/ radius stud package/hammer nose bushing
1988: Discontinue 8-3/8” and 2” barrel
1992: Discontinue 6” barrel, blue finish only
15-7 (1994): Synthetic grips introduced, drill and tap frame, change rear seat leaf, change extractor
1995-96: Delete square butt
1996: Begin shipments in blue plastic case
1997: 4” barrel only; change to MIM thumbpiece; shipped with master trigger locks; change to MIM trigger
15-8 (1997): Changes in frame design: cylinder stop stud eliminated; eliminate serrated tangs; change to MIM hammer with floating firing pin and change internal lockworks
1999: Model 15 discontinued in November
2001: Limited run Lew Horton Heritage Series from the S&W Performance Center.
15-9 (2002): Limited run Lew Horton Heritage Series McGivern Models from the S&W Performance Center. 3 Models commemorating Ed McGivern’s world speed records in 1934 with a revolver. All models have a Patridge front sight with Gold Bead, round butt frame with Altamount Fancy checkered service grips of that era, 6” barrel, Ed McGivern commemorative plate mounted on right side of frame, Heritage Series box.
15-10 (2011): Production re-commenced under Classics Revolvers line, re-tooled, shrouded redesigned barrel, internal trigger lock

Military and police usage[edit]

As the “K-38 Combat Masterpiece”, this revolver was first purchased in 1956 for the Strategic Air Command Elite Guardof the United States Air Force. From 1960 to 1969 the Air Force bought large numbers of Model 15-1, 15-2, and 15-3 revolvers with a 4″ barrel. The only distinctive markings are “U.S.A.F” on the left side of the frame. Originally all were blued, though some were reparkerized while in Air Force service.^[2] The Model 15 was the standard issue sidearm of the U.S. Air Force Air/Security Police from 1962 until 1992. It was issued to security personnel in other branches of the U.S. armed forces, including the Naval Security Forces.^[2]
The Air Force issued two types of .38 Special duty ammunition for the Model 15, originally the M41 .38 Special Ball (full metal jacket) cartridge, or the later-developed Caliber .38 Special, Ball, PGU-12/B High Velocity cartridge. The M41 was a low pressure cartridge rated at 13,000 psi, originally designed for 158-grain ball ammunition, but loaded with a 130-grain FMJ bullet. The PGU-12/B, issued only by the U.S. Air Force, had a greatly increased maximum allowable pressure rating of 20,000 psi, sufficient to propel the 130-grain FMJ bullet at 1,125 ft/s (343 m/s) from a solid 6-inch (150 mm) test barrel, and 950–980 ft/s (290–300 m/s) from a 4-inch (100 mm) revolver barrel.^[4]
The S&W Model 15 revolvers were replaced by the Beretta M9 pistol in 9×19mm caliber beginning in 1985, with complete turnover by the early 1990s.^[2]
In addition to military use, the Model 15 was issued by many police departments across the United States as well as various federal law enforcement agencies.^[2] In 1972 S&W produced a stainless steel version of the Model 15 which it termed the Model 67.^[2]

Users[edit]

The LAPD’s Model 15 revolvers (and department issued Model 36 5-shot, 2-inch barrelled snub nose Smith & Wesson revolvers for detectives, plainclothes, undercover and other officers’ off duty carry) were modified to be fired double-action only. This was accomplished by the department armorer who ground the full cock notch from the hammers. Officers were then trained to shoot combat style without ever cocking the weapons. This change was likely the result of unintended injuries and/or property damage, and of litigation against the LAPD after officers had cocked their weapons only to have them discharge inadvertently, possibly as a result of physical attacks or having been startled in the course of searching for suspects. In lawsuits, the principle of res ipsa loquitur was easily affirmed because “an inadvertent weapon discharge is a negligent discharge”.^[2]
Overland Park Police Department (Kansas) used the revolver before going to semi-automatic Beretta 92 pistols.

References[edit]

Jump up^ “K-38 Combat Masterpiece Revolver Model 15”, designed by Flora Mitchell Van Orden, wife of Brig. Gen. George O. Van Orden, USMC, with the attention of Tiny Helwig at the S&W head office in 1949, is the full name as it appears on the cover of the S&W owners manual
^ Jump up to:^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j Supica, Jim; Nahas, Richard (2007). Standard Catalog of Smith & Wesson. Iola, Wisconsin: F+W Media, Inc. pp. 346–347. ISBN 0-89689-293-X.
Jump up^ Owner’s Manual K-38 Combat Masterpiece Revolver Model No. 15 (05-01-0177 S&W No. 5101A)
Jump up^ Military .38 Special Ammunition, The American Rifleman (March 1982), p. 68