I ordered this upper with the Radical BCG around Christmas. I received it far quicker than expected and what I received is simply outstanding. All of the fasteners for the handrail were tight and I presume Loc-Tited, the fit and finish is exceptional with smooth edges on the Pic- rail sections. After adding my choice of charging handle and dropping into my lower I went to the range. 1.5" - 2" at 100 yds. no failures of any kind...flawless! I will be changing out the A2 hider for a Fossa and that is it. This is an OUTSTANDING upper.