A crossbow assembly may include a riser and a pair of bow limbs that attach to the riser. The limb attachment surfaces on the riser may be separated such that a minimum distance between them is not greater than 5 inches. The minimum distance may be at least as wide as a user's foot. The riser may have a U-shaped opening that extends between the limb attachment surfaces. The limb attachment surfaces may be angled between 60 and 30 degrees. The riser may have a foot stirrup that begins behind the limb attachment surfaces and extends beyond them.