Ergo 49883PK Wedge Orange for AR-Platform (3 Pack)
https://www.tandktactical.com/shop/810049120344-ergo-49883pk-wedge-orange-for-ar-platform-3-pack-34491
https://www.tandktactical.com/web/image/product.template/34491/image_1920?unique=e0f2bb5
Useful for reducing the amount of movement between the upper and lower receiver on an AR-15. Large enough so you can trim to fit
