Accessories shown in image(s) not included.

The Daniel Defense TYR M4A1 RIS II pairs a 14.5" Daniel Defense M4A1 carbine with the co-built KTMS 12 12-gauge underbarrel shotgun from TYR 1 Outfitters and Allegheny Gun Works, with only 50 units produced in this configuration. Built on a proven Daniel Defense M4A1 host with a RIS II rail, this dual-caliber setup comes equipped with an AAC 51T muzzle device, an AAC Rebar Cutter muzzle attachment, and an adjustable B5 SOPMOD stock, delivering both 5.56 NATO and 12GA capability in a single package.

Limited to just 50 units, this configuration is designed for collectors and serious enthusiasts seeking a rare, pre-assembled tactical system. The combination of the Daniel Defense host and integrated underbarrel shotgun eliminates the need for custom sourcing or assembly. As an NFA item, transfer through an SOT/Class 3 dealer is required.

• Manufacturer: Daniel Defense
• Model: TYR M4A1 RIS II
• Caliber: 5.56x45mm NATO / 12 Gauge
• Barrel Length: 14.50"
• Muzzle Device: AAC 51T Muzzle Device
• Muzzle Attachment: AAC Rebar Cutter Muzzle Attachment
• Action: Semi-Automatic
• Underbarrel Shotgun: 12 Gauge KTMS 12
• Handguard: RIS II Rail
• Stock: B5 SOPMOD Stock
• Product Type: NFA Item (SOT Transfer Required)
• Special Features: Limited Production (1 of 50), Dual-Caliber Capability
• Finish Color: Black / Flat Dark Earth (FDE)
• Condition: New