STT Complete Lower Receiver Parts Kit for AR-15 are a great addition to your AR15 build. From amateur gun builder to seasoned expert gunsmith, this lower parts kit is for you. Kit contains: Bolt Catch Bolt Catch Plunge Bolt Catch Spring Bolt Catch Roll Pin Mag Release Mag Release Button Mag Release Spring Buffer Retainer Spring Safety Buffer Retainer Safety Detent Spring Safety Detent Trigger Guard Trigger Guard Roll Pin Takedown Detent Springs Takedown Detents Takedown Pins All parts meet or exceed MIL-SPEC. NOTE: Fire control group and grip NOT included Mfg: San Tan Tactical
