FN 66100741: Experience the versatility of the FN 509M MRD, equipped with the FN Low Profile Optics Mounting System. This unique feature provides you the flexibility to mount over 10 different types of miniature red dot optics directly to your concealed carry pistol. Boasting a midsized frame with complete ambidextrous controls and all-black co-witness iron sights, this model offers a standard 15rd capacity. It can also accommodate larger FN 509 magazines using a sleeve. Enhanced controls promote easier manipulation, while the revamped texturing on the two included backstraps ensures improved recoil management. Additionally, the newly designed flatter trigger face facilitates a more controllable trigger press and a cleaner break. Each purchase includes two interchangeable backstraps, two 15rd magazines, and a locking device.