What are two stances that can be adopted from behind cover when using a handgun?

The two stances that can be adopted from behind cover when using a handgun are indeed the standing barricade and the kneeling barricade.

When using a standing barricade stance, the shooter utilizes a vertical position while leaning slightly forward, which can provide the advantage of mobility and a good field of view, allowing for quick target acquisition. This position is effective for engaging targets while still maintaining some degree of cover.

Conversely, the kneeling barricade stance involves the shooter resting on one knee, which provides stability and support while also reducing exposure to potential threats. This position allows the shooter to maintain a solid shooting platform while still being partially hidden behind the cover, making it suitable for engaging targets with better accuracy.

Understanding these two stances is vital for tactical shooting as they allow for adaptability to different combat situations while maximizing safety and effectiveness. Other choices, such as "sitting barricade," "prone barricade," or combinations like "leaning barricade" and "crouching barricade," do not reflect common stances recognized in handgun training for defensive shooting from cover.