Armaspec Superlight .223/5.56mm Lower Parts Kit SS/Black. You need a lot of AR15 Lower Parts to complete the lower receiver and Armaspec makes this easy with their Superlight AR 15 Gun Builder's Kit. This kit comes with almost everything you need to outfit a stripped lower including the Armaspec SFT 45/90 Ambidextrous Safety Selector which allows you to tune your safety to change at either 45 or 90 degrees. It also has the full bolt catch assembly and the magazine catch spring and release button making it easy for you to get your weapon ready for the next range day. Pick up this gun builder's kit today Specifications for Armaspec Superlight .223/5.56mm Lower Parts Kit: Manufacturer: Armaspec Caliber: 5.56x45mm NATO Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Country of Origin: USA Features of Armaspec .223/5.56 Superlight Lower Parts Kit Includes Armaspec Enhanced Lower Parts Compatible with most AR-15 lowers made in specialized factories Lifetime Warranty Package Contents: Armaspec .223/5.56 Superlight Lower Parts Kit Armaspec ARM252-BLK: Superlight .223/5.56mm Lower Parts Kit SS/Black