If the factory sights work well use them if not I would opt for the Williams Fire Sights over the Tru-Glo. One of my hunting buddies and I bought Tru-Glo' sa last year neither his or mine made it through the season, they would drift full left windage just carrying the gun. We saved the hunt by gluing them in place. Contacted Tru-Glo twice and never received a reply. Mine are still glued on the gun for a back-up, but I bought a Bushnell Halo Sight , pricey but boy is it nice.