Are you looking for a top rail as well?
You have the mesa high tube with short rail, many buy this kit and add the S&J hardware full lenght rail.
We has the CQB stock adaptor and long rail, not in production at this time.
Allso the S2AR adaptor. Use the with a side saddle top rail from MEASA
Last of all is the CAV arms adaptor, don't think that's sold in canada.
AS far as I know that's all of them
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