7iain7
Well-known member
When looking at https://www.miroku.eu/products/shotguns/over_and_under/mk38/A-MK38SPR5.html, it appears that Miroku has made alterations to the stock dimensions of many of their sporting and trap guns. The MK38 GR1 & GD5 models now feature different drop dimensions at the comb and heel. Additionally, although it's not mentioned on the webpage, it seems that the barrels have also been made lighter.