Hi I have a compete White oak armament SPR 18in upper for sale. This is a White oak armament 1/7 twist M/P tested 18in .223 Wylde S/S barrel (works with both .223/5.56) Upper is a White Oak Also. Comes with Daniel Defence 12in Lite rail. PRI front filp up Gas block and buis. ARMS 71L rear buis. Rainer arms select bolt group.M/P H/P tested upgraded extractor. BCM large latch Chargeing handle. Less than 100rds fired. I will incude the ladder rail covers and GG&G Bipoid addaptor $750 shipped. This is a comeplete upper. Just drop onto your lower and go. 1/2in group with my 75gn match rounds. Money orders, personal checks or paypal +fee/gift.