Ruger SP-101
Illustration — Ruger SP101.22 LR, 8 shots, 4 1⁄5 inch barrel The Ruger SP101 is a series of double-action revolvers produced by the American company Sturm, Ruger & Co. The SP101 is a small frame and all-steel-construction carry revolver, with a five-shot (.38 Special,.357 Magnum, and 9×19mm Parabellum); six-shot (.327 Federal Magnum and.32 H&R Magnum); or eight-shot (.22 LR) cylinder.
Ruger SP-101
Mcumpston (talk)Mike Cumpston · Own work (Original text: self-made) · Public domain
- Name
- SP101
- Field
- revolver
- Region
- United States
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Documentary summary
Illustration — Ruger SP101.22 LR, 8 shots, 4 1⁄5 inch barrel The Ruger SP101 is a series of double-action revolvers produced by the American company Sturm, Ruger & Co. The SP101 is a small frame and all-steel-construction carry revolver, with a five-shot (.38 Special,.357 Magnum, and 9×19mm Parabellum); six-shot (.327 Federal Magnum and.32 H&R Magnum); or eight-shot (.22 LR) cylinder.
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In this article
Key facts
Key facts
• Name — SP101 • Origin — United States • Type — Revolver • Is Ranged — yes • Manufacturer — Sturm, Ruger & Co. • Production Date — 1989–present • Variants — See Models • Weight — 25 - • Length — 7.2 in 8 in 9.12 in • Part Length — 2.25 in 3.06 in 4.2 in • Cartridge —.22 LR.38 Special.357 Magnum.327 Federal Magnum 9×19mm.32 H&R Magnum (discontinued) • Action — Double-action revolver • Range — 33 to 55 yards (30 to 50 meters) • Max Range — 550 yards (500 meters) +/− • Feed — 5/6/8-round cylinder
History
History
The Ruger SP101 was introduced in 1989 as the smaller-frame counterpart to the GP100. Together, these revolvers replaced Sturm, Ruger & Co's long-standing staple in the American firearms market, the Ruger Security-Six series revolvers. A 9 mm version was available until its discontinuation around 1998 but was later re-released in early 2018. A basic.22 LR version was also available until 2003 while a redesigned version was introduced in 2011.
Specifications
Specifications
• Weight: • 2", 25 oz. (708 g) • 3", 27 oz. (765 g) • 4", 22 LR: 30 oz. (850 g),.327 Federal Magnum: 29.5 oz (836 g), and.357 Magnum: 29.5 oz.(836 g) • Barrel lengths: 2" (57.15 mm), 3" (77.79 mm), 4" (101.6mm) • Double-action/single-action • Double-action-only on select models • Five-shot (.38 Special,.357 Magnum, 9×19mm Parabellum), six-shot (.327 Federal Magnum,.32 H&R Magnum), eight-shot (.22 LR) • Maximum effective range: 33 to 55 yards (30 to 50 meters) depending on barrel length and cartridge load
Models
Models
• Catalog number — Caliber — Capacity — Sights — Shroud — Barrel length — Weight — Notes • KSP-221 —.22 LR — 6 — Adj. — Full — 2" — 32 oz — Discontinued • KSP-240 —.22 LR — 6 — Adj. — Short — 4" — 33 oz — Discontinued • KSP-241 —.22 LR — 6 — Adj. — Full — 4" — 34 oz — Discontinued • KSP-242-8 —.22 LR — 8 — Adj. — Short — 4" — 30 oz — Adjustable fiberoptic • KSP-3231 —.32 H&R Magnum — 6 — Adj. — Full — 3" — 30 oz — Discontinued • KSP-3241 —.32 H&R Magnum — 6 — Adj. — Full — 4" — 33 oz — Discontinued • KSP-32731X —.327 Federal Magnum — 6 — Adj. — Full — 3" — 28 oz — No longer on web site: Jan 16, 2013 • KSP-32741 —.327 Federal Magnum — 6 — Adj. — Full — 4" — 29.5 oz • KSP-821 —.38 Special +P — 5 — Fixed — Full — 2" — 25 oz • KSP-821DOS —.38 Special +P — 5 — Fixed — Full — 2" — 25 oz — Bobbed hammer made for the U.S. State Department • KSP-831 —.38 Special +P — 5 — Fixed — Full — 3" — 27 oz — Discontinued • KSP-321X —.357 Magnum — 5 — Fixed — Full — 2" — 26 oz • KSP-341X —.357 Magnum — 5 — Adj. — Full — 4" — 29.5 oz — Adjustable fiberoptic • KSP-321X-CT —.357 Magnum — 5 — Fixed — Full — 2" — 25 oz — Crimson Trace lasergrips • KSP-321XL-LG —.357 Magnum — 5 — Fixed — Full — 2" — 25 oz — Crimson Trace lasergrips • KSP-331X —.357 Magnum — 5 — Fixed — Full — 3" — 27 oz • KSP-321XL —.357 Magnum — 5 — Fixed — Full — 2" — 25 oz — D.A.O • KSP-921 — 9×19mm Parabellum — 5 — Fixed — Full — 2" — 26 oz — Discontinued, uses moon clips; re-introduced November 2017 • KSP-931 — 9×19mm Parabellum — 5 — Fixed — Full — 3" — 27 oz — Discontinued, uses moon clips • All models are made of stainless steel • Caliber:.357 Magnum SP101s handle all.357 Magnum factory loads and accept factory.38 Special cartridges • Spurless-hammer models (double-action only) are designated by an "L" in their catalog numbers
Users
Users
* • New York Police Department SPNY Double Action Only (DAO).38 Special made specifically for the NYPD as a backup gun, off-duty, or Detective use.
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- United States
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Ruger SP-101 is associated with United States.
Country
Features and description
• The SP101 is currently manufactured in.327 Federal Magnum,.357 Magnum, 9 mm,.38 Special, and.22 LR. • Barrel lengths 2" (57.15mm), 3" (77.79mm), and 4" (106.7mm) with full underlugs. 4" (101.6mm) and 4" (106.7mm) with half underlug. • Stainless steel construction • Transfer bar safety mechanism • Firing pin mounted in frame • The transfer bar in the SP101 is connected directly to the trigger • Fixed (all calibers) or adjustable (.327 Federal Magnum,.357 Magnum, and.22 LR) sights • Spurred or spurless (double-action only) hammer
Citations
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reference work
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The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 14 August 2026.
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