I was trying to get these SIG, SigSauer, Swiss Arms, & SIG Arms rifles proportional. I didn’t quite succeed. This was done about the time SIG Arms became SIG Sauer in the USA.
i saw your video on the 550 series break down you really did a great job..the way you function checked it by placeing your left hand under the receiver then pulling back on the chargeing handle was the true and swiss correct way of charging the rifle..i was surprised to see this..also the pic showing the lineage of the sig rifles was cool,and your web page is to, its now bookmarked best of luck,
i saw your video on the 550 series break down you really did a great job..the way you function checked it by placeing your left hand under the receiver then pulling back on the chargeing handle was the true and swiss correct way of charging the rifle..i was surprised to see this..also the pic showing the lineage of the sig rifles was cool,and your web page is to, its now bookmarked best of luck,