Micro slides are made to the tightest allowable tolerances, with barrels machined from stainless steel for superior resistance to moisture. All Micro frames are shaped from the finest aluminum for integrity and strength. The thumb safety, slide release and magazine release are pure 1911 as well. Standard features include a lowered and flared ejection port; beveled magazine well; sights are steel not plastic and mounted in machined dovetails for additional integrity. Includes an extended 7rd magazine.