well we found time to start making these.

shown here is the 2 pc machine aluminum clamp with and with out rail, rail can be installed either side
M1913 spec rail
MSRP sill be
$53.99 CDN with rail
$39.99 CDN without rail
first batch is off to be type 3 mil spec anodized now

So far we have confirmed it fits
All Remington 870, 1100,1187 12ga

Mossberg 835 ,590( non heavy bbbl)

Winchester sxp

Benelli m4

more info on what guns it fits and we test