The cornerstone of the M1A family, this rifle is all business. The M1A is a civilian version of the M14 rifle designed and manufactured by Springfield Armory, Inc. in 1974. The term M1A is a proprietary title for Springfield Armory's M14 pattern rifle. The California Assault Weapons Ban, which went into effect January 1, 2000, prohibited flash suppressors on all Semi-automatic rifles capable of accepting a detachable magazine. As a result, Springfield Armory designed a muzzle brake, which they installed in place of the standard flash suppressor on all models that were sold in California. The muzzle brake reduces climb of the barrel, allowing the operator to aim more quickly for another shot.