Manufactured in 1975. Birdcage flash hider, bayonet lug on the gas block, post front and windage adjustable two-leaf rear peep sights, ventilated smooth triangular handguard, A1 pattern upper receiver without deflector or forward assist with a fixed carry handle. Standard markings on the left side of the magazine well, checkered grip, and checkered trapdoor buttplate. With original box, two extra magazines, and spring clamp bipod.