Description

Glock 21 Gen 5 MOS 45 ACP OEM Complete Slide Assembly – Includes Recoil Spring and Barrel – NEW

Upgrade your Glock 21 with this Factory OEM Complete Slide Assembly for the Gen 5 MOS model, chambered in .45 ACP. This complete upper includes the slide, barrel, and recoil spring assembly, fully assembled and ready to drop onto your Glock 21 Gen 5 frame. Featuring the Modular Optic System (MOS), it’s ready for your favorite red dot or optic.

Key Features:

• Complete Glock 21 Gen 5 Slide Assembly – Factory-installed barrel and recoil spring assembly for quick installation.
• Chambered in .45 ACP – Built for serious stopping power and smooth performance.
• Gen 5 MOS Compatibility – Designed to fit Glock 21 Gen 5 frames with Modular Optic System cut for red dot optics.
• OEM Quality – Manufactured by Glock for factory-grade reliability, precision, and durability.
• Brand New – Never fired or modified. 100% original Glock factory condition.

Specifications:

• Model: Glock 21
• Generation: Gen 5
• Caliber: .45 ACP
• Includes: Complete Slide, Factory Barrel, Recoil Spring Assembly
• Finish: Black nDLC
• Condition: Brand New OEM Part

Purchase & Shipping Information:

• Non-Serialized: Ships directly to you—no FFL required.
• Fast Shipping: USPS Priority Mail within 1 business day of payment for secure, trackable delivery.
• Compatibility: Only compatible with Glock 21 Gen 5 frames. Not for Gen 4, Gen 3, or other models.

Whether you’re building from the frame up or replacing your upper, this Glock 21 Gen 5 MOS OEM Slide Assembly delivers top-tier performance, reliability, and red-dot readiness.

Order now—inventory is limited!