Unfortunately there is no where to mount a rail on this stock.
The ProMag Mosin Nagant Archangel Tactical Stock will not work with a M91 Carcano.
The ProMag Mosin Nagant Archangel Tactical Stock will not work for a Marlin 795.
Yes, the ProMag Mosin Nagant Archangel Tactical Stock will fit a Nagant M-44.
This ProMag Mosin Nagant Archangel Tactical Stock is only designed to fit the Mosin Nagant, it will not fit your Mossberg. We do carry stocks that are compatible with the Mossberg MVP that you can find using the following link:
https://www.opticsplanet.com/s/mossberg-mvp?_iv_categories=rifle-stocks
This stock incorporates three (3) integral steel inserts for mounting ball lock / push button quick detach sling swivels.
This stock fits the classic Mosin Nagant rifle including most M1891, 91/30, M-38, M-44, Chinese T-53 carbines in both hex and round receivers; will fit the Finnish M-39 rifles and carbines with some modifications.
You can reach out to us at techsales@opticsplanet.com for further assistance.
You can use the original trigger. Upgrading to the Timney trigger is simply an option you can choose to make with this stock, but is not a requirement.
Yes, the stock will include a 5rd magazine, but there is also a 10 rd magazine available.
Please contact us at techsales@opticsplanet.com and we will provide you recommendations.