What a great guy to deal with to say the least! He installed an MRF-C rail system and rear flip ups by Troy Ind on my 6920. Got a bunch of other stuff from him as well at unbeatable prices. If you are considering on accessorizing your AR please do me a favor and call Chen (SMGLee) @ CL Tactical. A pleasure to deal with and would highly recommend to anyone looking to do upgrades on their AR! His website is as follows: www.cltactical.com
