Yes, the 1791 Gunleather Belt Holster Combo will be compatible with your Girsan MC1911 SC Ultimate model pistol. You would need to use the 4" 1911 holster models.
The 1791 Gunleather Belt Holster Combo for 1911's has a pouch designed for single stack, 45 ACP magazines.
Yes, the Taurus G2C model of the 1791 Gunleather Belt Holster Combo will fit a Taurus G3C. Those models can be found by clicking the link below.
https://www.opticsplanet.com/1791-gunleather-bh1m1-combo-1911-belt-holster-with-mag.html?_iv_gun-make=taurus&_iv_gun-model=taurus-g2c
Yes. The correct 1791 Gunleather Belt Holster Combos for your P229 are MPN:BH2.1M1.2-SBL-R (Stealth Black/Right Hand), MPN:BH2.1M1.2-SBR-R (Signature Brown/Right Hand), MPN:BH2.1M1.2-BLB-R (Brown on Black/Right Hand), MPN:BH2.1M1.2-CBR-R (Classic Brown/Right Hand), and MPN:BH2.1M1.2-SBL-L (Stealth Black/Left Hand).
Yes. Any of the 1791 Gunleather Belt Holster Combos that are compatible with 5" 1911 model handguns will accommodate an underside rail.
This 1791 Gunleather Belt Holster Combo will not be compatible with a Ruger Security 9 compact. You can use the following link to find all of the holsters we currently carry that are compatible with your Ruger.
https://www.opticsplanet.com/holsters.html?_iv_availability=in-stock&_iv_gridSize=240&_iv_parent-gun-model=ruger-security-9
No, it will not fit the Canik.
This appears it will not be compatible with your 1911 combat. the options show this will fit a 4 or 5inch.
They should be compatible.