Product DescriptionThe GLOCK G20 Gen5 Modular Optic System 10mm Auto rebuilt pistol is designed for shooters who want full-size performance, modern ergonomics, and optics-ready versatility. This Gen5 configuration features the GLOCK Marksman Barrel with more aggressive polygonal rifling, a target-style crown, and tighter chamber specifications to support improved accuracy. The precision-machined Modular Optic System slide allows for the installation of popular miniature red dot sights with compatible adapter plates, sold separately.Built with practical upgrades, this model includes a flared magazine well for faster reloads, ambidextrous slide stop levers for improved left- or right-handed operation, and the Gen5 grip profile with no finger grooves. The Safe Action System provides Glock&';s sequential passive safeties that disengage as the trigger is pulled and automatically re-engage when the trigger is released. Interchangeable backstraps in two sizes with beavertail extensions allow the grip circumference to be tailored to the shooter. An enlarged floor plate also makes it easier to strip the magazine free when needed.Product Highlights Gen5 G20 chambered in 10mm Auto for powerful full-size semi-automatic performance. Modular Optic System slide is factory machined for mounting compatible red dot optics with adapter plates sold separately. GLOCK Marksman Barrel features enhanced polygonal rifling, target-style crown, and tighter chamber specs for improved precision. Flared magazine well, enlarged floor plate, and ambidextrous slide stop levers support faster handling and improved usability. Customizable grip fit with interchangeable backstraps and beavertail options, plus the Gen5 no-finger-groove frame profile. Specs Brand Name: GLOCK Model: G20 Manufacturer Part Number: G20515MOSUS UPC: 764503069918 Caliber: 10mm Auto Generation: Gen5 Optics Ready: Yes, Modular Optic System Magazine Capacity: 15 rounds Barrel: GLOCK Marksman Barrel Controls: Ambidextrous slide stop levers Grip Configuration: Interchangeable backstraps with beavertail options Magazine Well: Flared Safety System: Safe Action System Condition: Rebuilt Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.