Sylvan Arms Conversion Block 9mm for AR Lower - Accepts Glock Magazines

Conversion Block Features The Sylvan Arms 9mm Conversion Block converts your AR-15 lower to a 9mm Lower using Glock magazines.The Conversion Block is built to handle any standard mil spec lowers with most 9mm uppers. Works with Glock 17 and Glock 19 magazines. Designed built and assembled in the USA. Conversion Block Specifications Conversion Block is built to handle any standard mil spec lowers with most 9mm uppers. Works with Glock 17 and Glock 19 magazines. Built of 60601 aircraft gra