X Products 5.56 & 9mm Billet Assembled Side Charging Upper - Black Non-Reciprocating

The greatest improvement to the AR-15, the X-15 SCU (Side Charging Upper). The billet machined X-15 SCU is a revolutionary leap forward in non-reciprocating side charging design that improves where others have left off. A true drop in system that allows the use of a Mil standard bolt without machine modification. The only change you make is install a special Cam pin into your bolt which is included with the upper. Designed to work with .223/5.56, .300 blackout/whisper, 6.5 Grendel, and 9mm the versatile upper works for all popular calibers and all standard and non-standard AR lowers. Machined and profiled to work with all M4 pattern M4 upper forend rails that are designed for use on the mil spec uppers. Additional Information Weight 1.1 lbs Shipping Dimensions 9 x 3.25 x 3.25 in Caliber .223/5.56, 300BLK, 9MM Brand X Products Color Black Weight 14 oz Finish Hard Coat Black Anodizing