- ARCA extension rail with T-slot along the bottom for picatinny rails
- Low profile rigid design with the ARCA rail close to the bottle.
- 2 piece system, the rail can be detached and swapped out with a compact rail.
- T-slots on the left, right and bottom of the rear to add rails and sling attachment points
- Comes with 1 Picatinny t-slot rails that slide in the t-slot under the ARCA and in the T-slots on the bottom and side rear.
- 2 holes in the rear for trigger adjustment
- Hole for reg adjustment