Here are a couple more that I did some upgrades to for a fellow GFYer.
Basic DPMS M4gery with upgraded Magpul stock, forearm, and pistol grip. Then swapped out the round forward assist for a teardrop one. Also got rid of the ugly front post sight and replaced it with a picatinny rail gas block. Add a grand to the price tag for the ACOG sight.
This is a Barrett 6.8mm SPC. It has a one of a kind custom built Daniel Defense rail that was required to fit around the gas piston system. Ambidextrous safety lever, anti-walk trigger pins, Magpul stock and forearm grip, & troy flip-up sights that co-witness perfectly with the EOTech.
