Rise Armament OS KIT Spare AR-15 Parts – Essential Components Kit

The Rise Armament OS KIT provides essential spare parts for AR-15 owners who want to keep their rifles running without downtime. This kit includes commonly lost or broken components that are critical for proper operation—think detents, springs, and small pins that can disappear during disassembly or wear out over time. Whether you're building a new rifle, performing routine maintenance, or simply stocking your workbench, having these parts on hand prevents frustrating delays when something inevitably rolls under the bench.

All components meet mil-spec dimensions and are manufactured from quality materials to ensure reliable function. This is a drop-in parts kit requiring no gunsmithing—basic armorer tools and familiarity with AR-15 assembly are sufficient for installation. Individual parts can be replaced as needed without disassembling the entire lower receiver in most cases.

• Part Type: AR-15 Oops/Spare Parts Kit
• Compatible Firearms: AR-15 and compatible platforms
• Material: Steel components with appropriate springs
• Finish: Varies by component
• Installation: Drop-In (basic armorer knowledge required)
• Includes: Detents, springs, pins, and other essential small components (refer to manufacturer specifications for complete contents)