There is a reason that the rear sling swivel stud is angled. Removing the spacer ... which was chambered in 6.5 mm Creedmoor, there’s a separate magazine-well assembly with a magazine latch ...
To that end, [Preston] started by cutting a 38 mm (1.5″) hole in the thickest part of the tank, and sanded the area around the opening to smooth things out. He then measured the depth of the ...