This setup is specifically for use with the Griffin Armament EZ-Lok system. The male side of the EZ-Lok adapter is included with this upper and torqued in place with red Loctite. The female, suppressor side of the EZ-Lok, is not included but I do sell them separately. The suppressor seen in the pictures is not included either nor is an additional barrel. They are just for illustrative purposes. No charging handle is included either as everyone seems to have their own favorite. I do sell the Griffin charging handles as well.
While I do torque down the barrel nut, I do not thread lock or tighten the rail screws. I had 1 customer tell me the rail interfered with two lowers he tried. A Doublestar and a PSA lower. I sent him a prepaid label to ship it back to me. I dropped the upper on 3 different lowers, CMMG Glock lower, post sample M16 lower that was an 80% Tactical Machining lower and my MGI Hydra Lower. It dropped on all 3 lowers perfectly. I then paid for shipping a third time back to him. So now, I keep the screws loose so you can adjust to your lower accordingly.
