Examining my bare 5E receiver #306991, I find that it isn't identical to the pictured receiver in several ways. Mine does have the crossbolt and the two unequal extension ribs. However, mine has a hole in the right front water table and it does not have the crossmember at the point where Glenn's water table is chipped. I was going to offer my nicely engraved receiver to Glenn to replace the chipped one, but I'm afraid it just won't work. So it goes back to being a fancy paperweight. Murphy