- 4" picatinny rail with 3" hole spacing for mounting on Grayboe and McMillan stocks with dual front sling studs.
- Includes mounting hardware. Screw mounting collars are for stocks that do not have sling studs : installed in counter sunk holes in barrel channel
- Includes one integrated flush cup.
- Allows for mounting of optional accessories.
- Mc--4" Pic Rail Blk