$57.99 Bostitch 863S4 15 Gauge 1/2â³ Crown Staple Gun 2 1/2â³ (USED) 77914027904 | eBay
Freeman PWC50 Pneumatic 16-Gauge 1 Wide Crown Stapler for Senco P Type Staples - Walmart.com 
Stanley Staple Gun, Electric, 7-1/2L, 1/2 Crown W TRE550Z | Zoro.com
