Springfield Saint Edge AR-15 Semi-Auto Rifle a " Get your Edge with premium construction for quick-handling, greater accuracy, and performance without spending a lot of money on a custom AR build. At 6 lbs. 3 oz., the Edge is one of the lightest production AR-15's on the market. It features a special free-float handguard and billet receiver with weight-shaving cutouts. The proprietary muzzle brake makes recoil unnoticeable, and the Melonite-treated trigger allows for a crisp trigger pull without any creep. The Accu-Titea" tension system ensures a tight fit eliminates rattle between the upper and lower receivers, combined with a premium M16 bolt carrier group that has been shot-peened and magnetic particle inspected for reliability. It's finished off with an adjustable pinned gas block, 1: 8 twist, flared mag well, metal flip-up sights, and Bravo Company furniture. Springfield Armory(R) proprietary, Modular Match Short Reset Single Stage Trigger CMV Melonite finished inside and out Unique multiport muzzle brake