Yankee Hill Machine Company Model-57XL Specter XL Features The Yankee Hill Machine Company Model-57XL Specter XL is built on YHM s billet upper and lower receiver set machined to tight tolerances for a solid consistent lockup between the two halves. Chambered in .300 AAC Blackout the carbine is designed to run the full spectrum of Blackout loads from subsonic rounds for suppressed use to full-power supersonic ammunition for everyday range work. The semi auto action cycles reliably thanks to YHM s attention to gas system tuning a detail that matters most when switching between those two very different pressure curves. This combination of a billet platform and a cartridge built for versatility makes the Specter XL a strong choice for shooters who want one carbine that covers multiple roles. Yankee Hill Machine backs the Specter XL with its reputation for precision-machined AR components built in-house rather than assembled from outsourced parts. The carbine ships ready to run with its 30-round magazine already in place giving the shooter immediate capacity for range trips training drills or defensive use. A 16 barrel keeps the overall package maneuverable without sacrificing the velocity needed for .300 AAC Blackout to perform as intended. Whether configured for suppressed home defense or everyday range use the YHM Model-57XL Specter XL offers a dependable American-made .300 AAC Blackout carbine for sale at GrabAGun. Yankee Hill Machine Company Model-57XL Specter XL Specifications Manufacturer: Yankee Hill Machine Company Model: Model-57XL Specter XL Caliber: .300 AAC Blackout Capacity: 30 Rounds Barrel Length: 16 Action: Semi Auto Available At: GrabAGun