MAPMAKERS TECHNOLOGY REFERENCE
M27 Infantry Automatic Rifle
A Marine Corps 5.56 mm automatic rifle derived from the HK416, initially fielded to automatic riflemen and later expanded across infantry squads.
Infantry automatic rifle · Real-world system · Initial fielding began in 2010

Technical basis
Short-stroke gas piston, rotating bolt, 16.5-inch free-floating barrel, selective fire, STANAG magazines, optics and accessory rails, and a barrel profile suited to accurate automatic fire.
Series appearances
- The Divided Peninsula — Chapter Thirteen
