Just another opinion, but I'm not sure you will be able to find a commercial shroud. In the heyday of sporterizing '96 import Swedes, I probably did 20 or 25 for customers, mostly for youth rifles as the word spread in our area. Did four for my family as well, still have three. I never felt the need to go with cock-on-opening, nor a "safer" shroud. I did lighten the striker mass for faster lock time,installed a few Timneys and/or aftermarket Beuhler style safeties. Never had a gas blowback incident or heard of one. It can happen obviously, just depends on your risk tolerance. One of my '96's is a pure long range target rifle, shot in NRA competition for years handloads and factory. CBC, NnY, PPU but very little Norma due to cost. No gas events.
