Thinnest mlok pic rail?

[BurtG]

Anyone know the thinnest m lok pic rail available ? Prefer aluminum.

 

[TheOE800]

Arisaka I think.

 

[WhiteDingo]

The co-witness rails that Sig sells for their Tread rifles are super low profile. How many pic slots do you need?

 

[j-dubya]

Arisaka.