narrow crown staplers - FineWoodworking- bostitch staples 1/2 crown molding ,7/6/2003· I would not use a stapler for hanging crown. (They are called narrow crown staplers because they shoot staples that have a norrow crown -- as opposed to the "normal" staples that fit your Arrow T-50. The name has nothing to do with the purpose.) For crown molding. I use my finish nailer, usually with 2 1/2 inch nails.Wide Crown Staple Guns (1/2-inch) - Staplers and StaplesBostitch 21680B air staple gun, 1/2" crown, 20 Ga. Uses BeA 80 staples. Bostitch 21680B pneumatic staple gun. Uses 1/2" crown 20 Gauge staples, 1/4" -9/16". Stainless steel staples available. $119.65 EA. Add To Cart Details. Bostitch 21680B-ALM Auto air staple gun, 1/2" crown, 20 Ga, Long Magazine. BeA 80 staples.