Luth-AR Buttplate Frame MBA-2 Only Black. This buttplate frame includes a machined steel insert and is designed to work on any of our AR style buttstocks. The thicker rear face of this buttplate adds to its strength and durability while the precision engineering allows the shooter a clear view of the buttons while the integrated QD sling swivel socket provides a great option for a running sling/carbine buffer . But most importantly it allows the shooter to use the entire buttstock extension on either a standard fixed or collapsible stock. Because this buttstock includes all of the screws needed for attachment we offer a one year limited warranty on this product. Specifications for Luth-AR Buttplate Frame With Insert: Manufacturer: Luth-AR Color: Black Package Contents: Luth-AR Buttplate Frame With Insert Luth-AR RL-009C: Buttplate Frame MBA-2 Only Black