I'm just testing the waters here... I'm looking for a fairly high-end Macbook Pro (newer model) on trade. Colt LE-6920 with LE serial number. Aimpoint PRO Patrol Rifle Optic Magpul Rear Flip-up Sight Streamlight TLR - 1 HP Weapon Light with pressure switch. Drop-in Quad Rail. I don't know the manufacturer but it has a very nice tight fit for a drop-in rail. Magpul STR Stock Pictures available upon request... All furniture, except the trigger guard, is black.