Well happy with mine as well. Managed to pick up one 4 months old for a song.

Only mods done to mine are cosmetic really....
Had the shroud milled away but NOT for any POI shift issues but so I could fit the UK Neil air stripper I found on a certain auction site.
After the milling was done then a simple carbon wrap on the barrel for protection.
Next is a 3D printed adjustable butt pad , again from the same auction site.
Butt hook made for it as well.

As to accuracy, a fellow club member picked it up and shot a three shot cloverleaf group at 55 yds , to say he was impressed is an understatement.

Cheers,
Scubaman.