Bought a new rem 597 flx camo rimfire .22 at cabela's. It has the tru glow sites. The front site has a orange bead and a dovetail that seats in the piece screwed to the barrel. This thing is too loose. It is literally falling out when my kid shoots. Are these expensive to replace. Are they know to have problems? Is it worth it to hassle the manuf. or drive two hours to the cabela's store?