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The Colt Detective Special is a carbon steel framed double-action short-barreled revolver, and is an example of a class of firearms known to gun enthusiasts as "snubnosed", "snubbies", or "belly guns". As the name "Detective Special" suggests, this model revolver was used as a concealed weapon by plainclothes police detectives. Introduced in 1927, the Detective Special was one of the first short-barreled revolvers produced with a modern swing-out frame. It was designed from the outset to be chambered for higher-powered cartridges such as the .38 Special, considered to be a powerful caliber for a concealable pocket revolver of the day. ==Design development== The Detective Special is by design a shortened and somewhat streamlined Colt Police Positive Special, sharing that revolver's slim "D" size frame and six round capacity. The DS uses a slightly smaller frame than the Colt Official Police or Smith & Wesson "K" Frame revolvers, but is larger than the compact "J" frame used in Smith & Wesson five-shot revolvers.〔 The Detective Special went through several issues or series.〔Fjestad, SP: ''Blue Book of Gun Values, 29th Edition''; Blue Book Publications, Inc., Minneapolis, 2008〕 The First Series was produced from 1927 until 1946. Compared to later production models, the First Series used a narrower frame, with reduced clearance between the frontstrap of the gripframe and the rear of the trigger guard. Other distinctive features included a shorter ejector-rod with an ungrooved, knurled tip; a checkered hammer spur and cylinder latch, a "half-moon"–shaped front sight, and an overlapping screw and locking pin set-up on the right side of the frame. Grip panels were wooden. A rounded butt on the metal frame became standard in 1933, but pieces with the original square butt (like that of the Police Positive Special) continued to be produced into the 1940s.〔 The Second Series ran from 1947 to 1972. The ejector-rod was longer and had a groove in its knurled tip; a three-inch-barrel variant was offered, with a yet longer ejector-rod. The cylinder latch was smooth, and the trigger spur serrated. The right side frame screw has no locking pin, and the rear half of the front sight is a serrated ramp. The grip panels were plastic in 1947, but were changed back to wood starting in 1955 (first with a silver-tone Colt medallion, and later a gold-tone). An optional hammer shroud was available from the factory to prevent the hammer from catching on clothing.〔 The transition from First to Second Series was gradual, with some post-WWII Second Series guns retaining short ejector rods and checkered hammers. Because of this, assigning a given revolver to a particular issue is best done by serial number. During the 1960s, the grip frame of the Second Series Detective Special was shortened, matching that of Colt's other snub-nosed pistols, the Cobra and Agent. Despite this alteration, the Detective Special's overall grip size remained unchanged, as Colt fitted the Second Series with new, lengthened gripstocks that extended below the frame.〔 The Third Series ran from 1973 to 1986. A new shroud extended down from the barrel, enclosing and protecting the ejector-rod, and the front sight was changed to a full ramp. New, oversize wood gripstocks were introduced that covered the front frame strap. The Third Series featured improvements to the revolver's internal lockwork as well. As with the previous two Series, a few nickel-plated guns were produced, and a 3-inch-barrel variant was again offered. In 1986, facing stagnant sales numbers as well as rising production and labor costs, Colt discontinued production of the Detective Special. Colt filed for bankruptcy protection in 1992. After reorganization, the company restarted production of the Detective Special in 1993. The post-1992 Detective Special is sometimes called the Fourth Series, and featured "composite" (rubber), wrap-around grips with a gold medallion. Only a two-inch barrel was offered, in blue or hard chrome finish. The new production run continued only until 1995, when Colt introduced its stainless-steel SF-VI as a replacement for the Detective Special.〔 From its introduction, the Detective Special used Colt's ‘Positive Safety Lock’ (hammer block), first featured on the Police Positive; the mechanism interposes a bar between hammer and frame until the trigger is pulled, preventing accidental discharge if the hammer is struck (e.g., if a dropped gun falls onto its hammer) with the trigger forward.〔(Colt Detective Special )〕 First and early Second Series Detective Specials are becoming highly sought after by collectors, particularly if they are in prime condition and still have the famous Colt "Royal Blue" finish. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Colt Detective Special」の詳細全文を読む スポンサード リンク
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