After having a heart attack and a pacemaker my cardiologist (cool gun shooter) will not let me shoot center fire rifles. I am allowed 9MM. I have had a replacement grille for my 2019 GLA250 for 4 years now and I just can't do this work anymore. I will trade one of my 556 or 223 Wylde uppers with BCG for about two hours work replacing the stock grille with a different one. I live near exit 95 North on US 95 North going to Reno. Barrels are 1:7 twist and I expect to be great shooters.