enabling quick detachment and reattachment while maintaining optic co-alignment
yet provides positive locking for safety
-Noise Reducing Rating - NRR 27dB
Winchester's Super-X line ensures consistent performance in the field
This upper features a 16" 5
DBST LPK 556 BLK Bolt Action enabling quick detachment and reattachmentDoublestar Corp., AR15 Lower Parts Kit, 223 Rem 556NATO, Black Finish, Includes Fire Control Group, Fire Control Group Pins and Springs, Bolt Catch Assembly, Magazine Catch Assembly, Front Pivot Pin, Rear Takedown Pin, Takedown Springs (2), Takedown Detents (2), Trigger Guard Pin, Pistol Grip, Screw and Washer, Buffer Detent, Buffer Detent Spring