The Colt M5 Carbine Sentry is a modern 5.56 NATO rifle built around Colt’s redesigned upper and lower receivers. Its ambidextrous controls improve handling from either shoulder, while the rigid upper receiver and Picatinny rail provide a stable foundation for optics and accessories. A carbine-length direct-impingement gas system, free-float M-LOK handguard, collapsible synthetic stock, and flip-up sights create a versatile configuration for training, competition, and general-purpose rifle use.

Key features

• 16.1-inch 5.56 NATO barrel with a 1:7 twist for dependable performance across common projectile weights
• Ambidextrous controls and safety selector support comfortable operation from either shoulder
• Free-float M-LOK handguard and Picatinny upper rail provide flexible accessory and optic mounting
• Collapsible synthetic stock allows the rifle to be adjusted for fit and storage
• Flip-up front and rear sights provide a durable backup sighting system
• 30+1 capacity supports extended range sessions with fewer reloads

The Colt M5 Carbine Sentry combines Colt’s updated ambidextrous receiver design with practical rail, handguard, and stock features in a capable 5.56 NATO rifle configuration.