This is a one-stop shop for fresh springs! This kit contains every spring used in a Windham Weaponry .223/5.56 rifle, including: (1) charging handle latch spring; (2) ejector/safety detent springs; (1) extractor spring; (1) buffer retainer spring; (1) bolt catch plunger spring; (1) magazine catch spring; (2) take down/pivot pin springs; (1) hammer spring; (1) trigger spring; (1) disconnector spring; (1) forward assist spring; (1) ejection port cover spring; (1) front sight post detent spring; and (1) buffer spring. Buffer springs are available for adjustable and fixed stock rifles. All parts are made in the USA.