Going a different route with a recent build and checking to see if there is any interest in a my like new Gemtech 556 Suppressed Bolt Complete Carrier Group and JP Gen 2 H2 Silent Captured Spring and Buffer kit W/ extra spring pack. Both of these items are usually sold out and hard to come by. I paid over $450 for the pair and literally fired 40 rounds through the gun before deciding I no longer plan to suppress the rifle. My loss is your gain. Asking $350 for the pair. JP kit comes in factory box. Would consider partial trade for like new hard chrome or NIB-X type complete BCG.