The bolt is locked back on Al's AR-15, then closed, then locked back, when Morgan and Naomi are going to the infirmary.
When Luciana asks "Can you see her?" at the stadium, a crew member's reflection is visible in the window over her shoulder.
Although Alicia asks Althea, "How'd you like that RPG?", the weapon used was actually a "Light Anti-tank Weapon" known colloquially as a "LAW".