Anderson Manufacturing Lower Receiver Whoops Parts Kit - The Whoops Kit comes with springs and detents that can easily get misplaced when you are installing and/or replacing them. Kit includes the following items: Bolt Catch Detent 3/32in x 1/2in Bolt Catch Pin Coiled Pin Bolt Catch Spring Buffer Detent Buffer Detent Spring Disconnect Spring Magazine Catch Spring For AR-15 Safety Selector Detent For AR-15 Safety Selector Spring Take Down Pivot Pin Detent (2 Per Rifle) Detent Take Down Spring (2 Per Rifle) Mil-Spec Hammer Spring 1/8inx5/8in Coiled Roll Pin For Trigger Guard Trigger & Hammer Pin For AR-15 (2 Per Rifle) Mil-Spec Single Stage Trigger Spring
