Posted on July 15, 2021July 15, 2021 by Admin — Leave a commentUnited Sporting Arms, LLC. | .410 Upper – Unboxing & Cleaning Guide Darren unboxes a .410 Upper from USA, LLC. and demonstrates how to properly dismantle and rebuild it when cleaning. You can purchase a .410 Upper from USA, LLC. here. Post navigationPrevious post: New model 410 upper pictures and update Leave a Reply Cancel replyYou must be logged in to post a comment.