The Cs - FSC Compensator rail combination master pack

The following master pack Includes the following:
3 x rail adapters
Mlock picatinny rail starter pack. (2 x rails)
4 x Compensator attachments include Ar hanguard adapter. 
3mm Compensator.
2 x 7inch barrel Compensators, with and without mlock side rail mount.
1 x Spares pack.
1 x Cs Fsc bolt spring