You will need the Geissele MPX M4 Trigger System 16-025 at the link below for the MPX.
https://www.opticsplanet.com/geissele-mpx-m4-trigger-system.html
No, the Geissele 05658 Super MCX SSA Trigger is designed for the MCX platform. Use the link below to see all triggers we currently carry that are compatible with the AR15 platform:
https://www.opticsplanet.com/s/ar15-trigger?_iv_categories=triggers&_iv_gridSize=240&_iv_parent-gun-make=ar-platform
Yes, the Geissele 05658 Super MCX SSA M4 Curved Trigger will work in a Sig MCX Virtus Patrol.
Yes, the Geissele 05658 Super MCX SSA M4 Curved Bow AR Style trigger will fit a Sig Virtus.
The Trigger group essentially enclosed by that once installed.
This Geissele 05658 Super MCX SSA M4 Curved Bow Trigger will work in a Sig Rattler. Please email us at techsales@opticsplanet.com for more information.
Recommend reaching out to us at techsales@opticsplanet.com
GA curve has a flat trigger face while the M4 curve has a rounded trigger face.
No, you would need their MPX trigger, which unfortunately we do not carry at this time. You can find it directly from the manufacturer here: https://geissele.com/mpx-ssa.html