Evan, 2829789 (Law Enforcement) includes Phosphoric night sights and three magazines (2) 10rd and (1) 15rd. 2815249 includes 3-Dot Combat Sights and two magazines (1) 10rd and (1) 15rd.

the 2829789 is a special LE qualified professional package Many major manufacturers offer discounts to a large list of individuals they consider Qualified Professionals. Although commonly referred to as Law Enforcement, LE or Veterans Discounts, these discounts are actually also available to many other types of Qualified Professionals, including :
Active, Honorably Discharged or Retired Military personnel - all branches (veterans, including
medical discharges/disabled)
National Guard personnel - all branches
Military Reserve personnel - all branches
CAP - Civil Air Patrol
Fire Fighters - including volunteers
Paramedics and EMTs
TSA Employees
Commercial Pilots
Federal Flight Deck Officers
Air Marshals
Court Judges
District and Deputy District Attorneys
All sworn or retired Law Enforcement Officers - city, county, state, and federal
All Corrections and Probation Officers
State Licensed Security Companies
State, Federal, and Private Security Guards
DOD Contractors and the link
budsgunshop.com/catalog/qualified_professional_discounts.php