Complex sentence: The Angel is one of the first electropneumatic paintball markers, manufactured by Angel Paintball Sports (originally WDP) in 1997, introduced alongside Smart Parts' original Shocker.
Split into simpler sentences: The Angel is one of the first electropneumatic paintball markers. It was manufactured by Angel Paintball Sports (originally WDP) starting in 1997 and was introduced alongside Smart Parts' original Shocker.