What type of guns does the Marvel character Deadpool use?

The Marvel character Deadpool is known for his use of a variety of weapons, including pistols, submachine guns, assault rifles, and heavy weapons. However, he is most commonly associated with using a pair of custom-made Heckler & Koch USP Match pistols, which he refers to as "Bessie" and "Peaches". These pistols are often modified with custom grips, sights, and barrels, and Deadpool is highly proficient in their use.