Traded into a Para Ordnance 1911 GI Expert, need help with Barrel confusion...

[45/30-06OKIE]

So backstory time, I have a Springfield mil-spec and tris to get a threaded barrel for it a while back and found a 1911 45 Auto threaded barrel for CHEAP on GunBroker and it said for Para Ramp and I didn't think anything about it and it DID NOT fit my Springfield mil-spec () so I then got a Nighthawk threaded barrel and it fits (and shoots) great. So I traded a 45 Colt Pietta SAA and a bunch of 45 Colt ammo and dies for this Para GI Expert plus 250 cash on top of it. So the only sole reason I did the deal was cause I remembered I had a Para Ordnance threaded barrel and so I was like oh yeah I can make a little bit of moolah on this by putting that barrel in it for suppressed use by a customer..... Well it's got a GI spec lower and barrel after all. Yeah I know what y'all are thinking, Okie, you silly goose, it said GI on the box, of course it's going to be GI spec parts!! Yeah I should have taken it apart but I didn't have my wrench with me and I wasn't going to take someones gun apart unless this was like a super rare one of like 50 type of thing to verify serial numbers and stuff.
So to make a very very long story short, can someone clarify what exactly Para Ordnance models used the ramped barrels/lowers?? I was under the impression that ALL Paras did but apparently not.

 

[Howland937]

Is the ramped barrel a .45acp barrel? Most are seen in .38 Super/9mm offerings that are higher pressure and require better overall case support...as in fully supported. Of the .45's I've seen with the feed ramp cut into the barrel and not the frame, most all were aluminum frame guns.
*However, Para/Clark ramp cut and Wilson/Nowlin ramp cut are 2 available styles of ramped 1911 barrels and are used throughout the industry by multiple manufacturers. So you don't necessarily need a Para pistol to use your Para barrel.

 

[45/30-06OKIE]

Is the ramped barrel a .45acp barrel? Most are seen in .38 Super/9mm offerings that are higher pressure and require better overall case support...as in fully supported. Of the .45's I've seen with the feed ramp cut into the barrel and not the frame, most all were aluminum frame guns.
*However, Para/Clark ramp cut and Wilson/Nowlin ramp cut are 2 available styles of ramped 1911 barrels and are used throughout the industry by multiple manufacturers. So you don't necessarily need a Para pistol to use your Para barrel.

Yes that threaded barrel is a 45 ACP.

 

[Howland937]

Yes that threaded barrel is a 45 ACP.

Then you'd just have to do a bit of research to figure out what guns run that setup. In addition to better chamber support, the ramped barrels are to help in reliably feeding hollow point, SWC and other bullet designs that aren't JHP. Typically these are more target oriented, match barrels and such...not just run of the mill 1911 .45's.

That barrel would be great for someone that wanted a multi-caliber 1911 that already has a Para ramped frame.