Ruger Security-9
polymer frame semi-automatic pistol by Ruger

The Ruger Security-9 is a 9mm caliber semi-automatic pistol announced by Sturm, Ruger & Co. on November 22, 2017.
History
Introduced in late 2017, Ruger intended to use the Security-9 to replace the Ruger SR-Series. The Security-9 managed to be even less expensive than the SR-Series as it eliminated the adjustable backstrap and ambidextrous magazine release, used an internal hammer-fired mechanism instead of a striker-fired mechanism and hardened aluminum alloy rails instead of steel rails. The Security-9 was primarily aimed at the affordable handgun demographic.
Design
The design and internal hammer action of the Security-9 pistol are derived from firearms first produced by Kel-Tec (such as the P11) circa 1995.
The trigger on the Security-9, despite its hybrid single- and double-action nature, is relatively light. Ruger calls this mechanism the "Secure Action" design, and it combines the trigger pull of the LCP with single-action, as it has a positive reset. It also has a hammer that provides a strong ignition force that has a slide racking to make it much easier to slide. The pistol also features a sight system with drift adjustable rear sight and a fixed front sight.
Begin with the source’s own compact description: “Ruger Security-9” is polymer frame semi-automatic pistol by Ruger. The dossier treats that line as a proposition to test through Ruger, Security-9 and polymer, not as a finished interpretation.
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This entry incorporates text from “Ruger Security-9” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.