LAW TACTICAL LLC LAW ALIGNMENT TOOL (LAT) FEATURES Universal design works with both AR15 and AR10/SR25 receivers and buffer tubes. Work with or without Law Tactical Folding Stock Adapter equipped lowers. Both AR15 and AR10/SR25. Designed to keep the receiver extension (buffer tube) in alignment by preventing rotating during installation or maintenance onto the lower receiver. Maintains alignment when loosening or tightening the castle to proper torque. Black Hard coated anodized aluminum construction with nylon bolts included. Intended for use with a buffer tube vice block (Geissele Reaction Block recommended) Mfg: Law Tactical Llc