USED Gray Ops CNC Bag Stop - Quick Detach Black GO-BSTOPQD. This is especially helpful for 22LR actions to feed reliably. Specifications for Gray Ops CNC Bag Stop - Quick Detach: Manufacturer: Gray Ops CNC Color: Black Fabric/Material: 6061 Aluminum Country of Origin: USA Features of Gray Ops CNC Bag Stop - Quick Detach Mounts directly to a variety of Arca clamps sharing the Arms17s hole spacing Low Profile Quickly remove or attach when needed Machined from 6061 aluminum Black anodize finish Length designed for standard 10 round and extended magazines Two threaded 10-32 holes Weight 2.5 ounces without an Arca Clamp Package Contents: Gray Ops CNC Bag Stop - Quick Detach Gray Ops CNC GO-BSTOPQD: Bag Stop - Quick Detach Black