Thanks to the descending cost of video technology and the ascending number of paying outlets for gun porn, production values have never been higher. Colion Noir’s team makes some truly cinematic stuff. But Larry Vickers takes the brass ring for slinging brass on video. Sure, the plot leaves a little to be desired. And slow motion gets kinda old after . . . a . . . while. And I could do without the cheek weld sweat. But the editing, music and video quality make LV’s Inside the M4 Carbine a must-see for anyone who wondered “how’s that work, then?” BTW, is FPSRussia out of the FBI’s witness protection program yet?