Home / AR15 UPPER RECEIVERS / NEW FRONTIER C4 UPPER RECEIVER AR15 SIDE CHARGING BILLET BLK NEW FRONTIER C4 UPPER RECEIVER AR15 SIDE CHARGING BILLET BLK$22499 Manufacturer : New Frontier Armory UPC : NEW FRONTIER C4 UPPER RECEIVER AR15 SIDE CHARGING BILLET BLK quantity Add to cart SKU: C4NRSC Category: AR15 UPPER RECEIVERS Product ID: 92306 Additional information Additional information Weight 1.050 oz Serialized NO Related products NEW FRONTIER C4 UPPER RECEIVER AR15 SIDE CHARGING BILLET BLK $22499 Out of stock CMMG UPPER RECEIVER ASSEMBLY FOR AR-15 BLACK< $10995 Out of stock 2A BALIOS LITE BILLET UPPER RECEIVER GEN2 AR-15! NEW FRONTIER C10 UPPER RECVR AR10 SIDE CHARGER BILLET BLACK $34999