I find that accuracy amazing. Maybe yours was defective. Private Parts Howard Stern Pdf Files there. Live Cd Windows Vista Usb Recovery'>Live Cd Windows Vista Usb Recovery. I own a preban Poly Tech Legend National Match wforged receiver and Hbar and can do the same with it. Spikes Tactical AR 1. Upper Receiver Assembly SFT5. M4 Just as I had expected from Spikes, excellent quality, looks to be 1. FIVESIXTN/DSC05524.jpg' alt='Ak Receiver Flat With Rails Installed' title='Ak Receiver Flat With Rails Installed' />Want to pick the best AR15 for your dollar but dont know where to start Educate yourself with this easy to use intro guide to the world of the AR15. The Spikes Tactical M4 flat top stripped upper receiver is machined from a MilSpec 7075 T6 forging with a durable Type III Hardcoat Anodized finish that also. The beauty of the Turnover Ball is that, when the ball is stored upsidedown in the receiver, it perfectly fills the hole and doesnt allow dirt and grime to get in. Fit perfect with my Spikes Lower, nice and tight and the finish match was right on. I was a bit surprised that it came in rather cheap back like used for other parts but just figured the upper would come in a box like my lower, I could be wrong but I think all their parts will be in these white bags now. Shipping and service was top notch as always.