JP Enterprises Buffer Retainer Pin, Compatible with FMOS and LMOS, Not Compatible with VMOS In stock at Eden Prairie store. Available today! Price: $12.95 Description Details Reviews Shipping info UPC: 812872025520Manufacturer: JP RiflesModel: JPSCS-BRPCategory: PartsOtherMisc AR-15 PartsStock: 4Unit/Measure: ea This item may be shipped directly to your home address, unless you live in a restricted state.