This is an industry-specific heavy duty outward clinch tacker.
The G5-OC uses STCR 5019 type staples to 9/16" leg length, for the really tough wire stitching jobs in insulation, attaching labels to corrugated cartons without damaging contents, etc.
Wearing parts, such as the outward clinch door, and most other parts, are compatible and interchangeable with the discontinued Bostitch T5-8-OC tacker.
This special application tacker is normally only available through specialty distributors to the Insulation and HVAC Industries, and selected trade catalogs.
Takes the full range of STCR 5019 type staples from ¼” to 9/16".