Sylvan Arms GCB100 AR-15 To 9mm Glock Conversion Block
Our Glock 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 grade aluminum.
100% satisfaction guarantee.
limited lifetime warranty
Designed, built, and assembled in the USA.