ERGO ERGO 5 PIECE AR UPPER RECEIVER SPRING KIT $9.99 SKU: ERGO4611 Quantity: 1 2 3 4 5 6 7 8 No-hassle 14-day returns share Description 5 Piece AR Upper Receiver Spring Replacement Kit includes the following parts: Ejector Spring Forward Assist Spring Port Cover Spring Extractor Spring Extractor Spring Buffer Specifications SKU ERGO4611 Recommended Products Dominion Arms Swedish Style Knife $9.99 More Info Add to Cart Black Creek Labs BCL ambidextrous BOLT CATCH $29.99 More Info Add to Cart BAOFENG Car Charger for UV5R Radio $4.99 More Info Add to Cart Dominion Arms Long Picatinny Rail for IWI Tavor - CanadaAmmo Exclusive $29.99 $99.99 More Info Add to Cart