Anyone Know Underwood E105 ?

[painter777]

This picture of E105 is from the sale in 2016, it shows the finish wear in front of and behind the front sight from once wearing a M3 Flash Hider. Barrel described as 7-43.
In the current auction the barrel date 7-43, finish wear spots seem to be toned down, maybe touched up.
Currently it has the same stock it was wearing in the 2016 auction.. I'll link the current auction below.




Note in this 2007 link it appears it was once in a M2 stock, M3 Flash hider, plus had a 10-43 barrel.
Jim K, maybe our same fellow member here, made some comments and possibly seen the pictures the OP attached (no longer available).

Firing Line Link to UEF E105:
m1 carbine - The Firing Line Forums

Few things have me wondering......... Did the OP in the Firing Lines link incorrectly date the barrel? Reading it he seems to be sure of the date. If he was correct, somewhere between 2007-2016 a 10-43 barrel was removed and a 7-43 barrel was installed... Why ?
The current 7-43 barrel shows finish wear from a M3 flash hider since the 2016 auction.
Was the barrel replaced and someone put the Flash hider back on, causing the wear I can see now ? I don't know. Just something about this E105 when you look at the 'Rough Grinding, Stamping and Applied Finish'
Would you consider this type workmanship Presentation Grade ?
When compared to Underwood E160 ??
Rare Presentation Grade Underwood Semi-Automatic M1 Carbine-Carbine Firearms Auction Lot-2514

Current RIA Listing:
Underwood M1 Carbine Carbine 30 Carbine-Carbine Firearms Auction Lot-3496


Charlie-Painter777