In contrast to division of work, division of labour is the specialization of an individual workers' or organizations' skills, through education, training, and practice.
AR15 Trigger Upgrades. 1  The trigger is one of the most crucial elements in achieving the highest level of accuracy from any firearm. Installation of a quality trigger will permit a light pull with little or no creep and overtravel.
Best Answer: The AR designation comes from the name of the company that produced the firearm - Armalite. It is a common misconception that it stands for assault rifle. From Wikipedia: The AR-15 is based on the 7.62mm AR-10, designed by Eugene Stoner of the Fairchild ArmaLite corporation.