The Ruger SP101 is a series of double-action revolvers produced by the American company Sturm, Ruger. The SP101 is a small frame and all-steel construction carry revolver, with a 5-shot (.38 Special, .357 Magnum, and 9×19mm Parabellum), 6-shot (.327 Federal Magnum and .32 H&R Magnum), or 8-shot (.22 LR) cylinder.
The Ruger SP101 was introduced in 1989 as the smaller frame counterpart to the GP100. Both of these revolvers, together, replaced Sturm, Ruger & Co's long-standing staple in the American firearms market, the Ruger Security-Six series revolvers. While no longer manufactured, a 9mm version was available until around 1998. A basic .22 LR version was also available until 2003 while a redesigned version was introduced in 2011.
Features and description
The SP101 is currently manufactured in .327 Federal Magnum, .357 Magnum, .38 Special, and .22 LR.Barrel lengths 2 1⁄4" (57.15mm), 3 1⁄16" (77.79mm), and 4 1⁄5" (91.2mm) with full underlugs. 4" (101.6 mm) and 4 1⁄5" (91.2mm) with half underlug.Stainless steel constructionTransfer bar safety mechanismFiring pin mounted in frameThe Transfer bar in the SP101 is connected directly to the trigger.Fixed (all calibers) or adjustable (.327 Federal Magnum, .357 Magnum and .22 LR) sightsSpurred or spurless (Double Action Only, D.A.O.) hammerWeight:2 1⁄4", 25 1⁄2 oz. (708g);3 1⁄16", 27 oz.(765g).4 1⁄5", 22 LR: 30 oz.(850g), .327 Federal Magnum: 29.5oz (836g), and .357 Magnum: 29.5oz.(836g)Barrel lengths: 2 1⁄4" (57.15mm), 3 1⁄16" (77.79mm), 4" (101.6 mm).Double-Action/Single-ActionDouble Action Only (D.A.O.), on select models5-shot (.38 Special, .357 Magnum, 9×19mm Parabellum), 6-shot (.327 Federal Magnum, .32 H&R Magnum), 8-shot (.22 LR)Maximum effective range: 33 to 55 yards (30 to 50 meters) depending on barrel length and cartridge load.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 the Catalog Number.
