Colt SP6920 Magpul Edition. Magpul equipmnent is 4 pos stock, pistol grip, back up rear sight, vertical foregrip for rail, and trigger guard. My question is which model do I have because the forend is a Colt Defense rail (Colt Defense logo engraved on top right rail near delta ring). I can't find any Magpul MOEs with this rail. Reciever is marked M4 Carbine. I would post pics but I am having a damned hard time getting the camera to focus on the tiny Colt Defense logo. Box did not have the customary blue label on the end, but did have the UPC sticker with serial number. Anyone know exactly what model this is? Any help would be appreciated. Inspection confirms that this is definitely a brand new rifle and all other goodies (magazines, cleaning kit, sling, vertical foregrip,etc.) were still sealed in the box. Also the manual is a Colt Match Target Rifles manual and included were 3 rail covers (not 4). Is this odd or normal?