Built around a robust stainless steel chassis, the Springfield Armory Echelon Comp 9mm handgun features an integral compensator with a single port on the hammer-forged slide and barrel, reducing muzzle rise for faster, more accurate follow-up shots. The revolutionary optics mounting system offers unparalleled adaptability with today's most respected red dot sights, while fully ambidextrous controls and interchangeable backstraps accommodate a broad range of shooters.FeaturesIntegral CompensatorTritium Front SightVariable Interface Optics Mounting System Allows for Direct Mount on Most Pistol Optics20+1 Version Comes with (1) 17-Round Magazine and (1) 20-Round Magazine15+1 Version Comes with (2) 15-Round Magazines10+1 Version Comes with (2) 10-Round Magazines