Filled epoxy would have far more sheer strength than the toughest wood... And the real issue is tension, not sheer. Shock resistance is also an issue, but epoxy is stronger than wood there too.
Since when are cross bolts made of wood?
Obviously cross-bolts are not made of wood... but wood is the material being "protected" by them and it is infrequently subject to splitting when cross-bolts are not used... Adding significant epoxy bedding with glass fibers and epoxy worked into the end grain of the magazine well will absolutely do far more good than cross-bolts.
Mark Begich, Joaquin Jackson, and Heller resistance... Three huge reasons to worry about the NRA.
