LANTAC M-SPEC FRK. AR15 Field Repair Kit Black. Manufactured to the highest quality standards using correct materials heat treatments and finishes to comply with up to date military specifications. Kit includes the following: Bolt Catch Plunger Bolt Catch Plunger Spring Bolt Catch Roll Pin Bolt Catch Set Screw (6-32 compatible with Lantac Aero and other lowers). 1/16th Allen Key Head Buffer Retainer x2 Buffer Retainer Spring x2 Takedown Pin Detent x2 Takedown Detent Spring x2 Pivot Pin Detent x2 Pivot Pin Detent Spring x2 Trigger Pin x2 Safety Selector Detent x2 and Safety Selector Detent Spring x2. Specifications for LANTAC M-SPEC FRK. AR15 Field Repair Kit: Manufacturer: LANTAC Color: Black Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Features of LANTAC M-SPEC FRK. AR15 Field Repair Kit Lifetime Warranty Package Contents: LANTAC M-SPEC FRK. AR15 Field Repair Kit LANTAC 01-PKIT-FR: M-SPEC FRK. AR15 Field Repair Kit Black