Custom built by A-Square on an Eddystone Model 1914 pattern military rifle receiver with a ramped beaded blade front and fixed express notch rear sights. The right side of the barrel is marked "A-Square/Made in Glenrock, WY, U.S.A." and ".577 TYRANNOSAUR" on the left. The barrel and receiver are drilled and tapped for scope bases with filler screws in place. The receiver ring still has the original "ERA" marking over the serial number. Heavyweight pistol grip stock with a contrasting forend cap, dual recoil bolts and a vented A-Square recoil pad. With a set of swivel style scope rings.