16" 300BLK Low Profile Piston Upper with A.P. 12" M-Lok Handguard

A: Standard Carbine Spring and H2 buffer.

A: Yes, if it is a product we can get through our distributor; however, many products are hard to acquire at the moment. If you reach out to us and let us know what sights you are looking at we can look into availability. The sights we normally have on hand Magpul MBus front and rear are currently out of stock at our distributor.