Another mass shooting has put gun stocks back in focus.

On Sunday, Devin Patrick Kelley open fired and killed 26 people and injured roughly 20 others at the First Baptist Church of Sutherland Springs, TX. The act marked the deadliest shooting in Texas' history.

Two of the five deadliest shootings in U.S. history have now taken place in the last 35 days.

Shootings like these spark intense debates in the U.S. among those advocating for stricter laws governing firearms, and those who defend the sale of guns so that they can be used as a means of self-defense.

As a result of Sunday's killings, shares of gun stocks are rising during Monday morning trading. Shares of Sturm Ruger & Company Inc. (RGR) - Get Report were higher over 3.35%, whiles shares of its counterpart American Outdoor Brands (AOBC) - Get Report , the parent of Smith & Wesson, were also climbing over 3%.

Shares of gunmakers will typically rise after mass shootings as investors bank on sales boosts provided by those fearing harsher regulations governing firearms, and those wishing to purchase guns as a means of protection.

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