Aluminum 6061 T6
6.934 inches/176 mm
.5 inch/12.7 mm
Type III Class 2 MIL-A 8625 Anodization (Hard Anodized)
Picatinny Rail 17 Slots – 7 Inches
This rail is 6.934 inches/176 mm long, .433 inch/11 mm thick. It has 17 Slots. It has a total of five (5) through holes sized to take 10-32 screws. The diameter of the counterbores are .488 inch/12.4 mm, which is sufficiently large to take 1/4-20 or 1/4-28 button Head Hex screws. To use these rails with 1/4 screws simply enlarge the diameter of the through holes.
The five holes are distributed 1.576 inch/40 mm apart from center to center of holes. This rail will mount to the bottom of our F.A.S.T. chassis fore-ends.
Look through the pictures to see a technical drawing of this rail.