Bought a set of A.R.M.S. #21 Stanag 30mm Rings for a L42A1 tribute built, highly recommend against them. The rings we completely out of round, took about an hour with a ring lapping bar to make them usable.
Highly recommend against them. You can see how uneven the lapping marks are.
Highly recommend against them. You can see how uneven the lapping marks are.