Sorry for the newb question. are e talking about the big orange rig that wraps under the bottle holding the bipod out front? (coming at this as a photographer who's been using ARCA rails for decades that look nothing like anything in the photo)
Same here. I can see that flexing quite a bit depending on how you hold the rifle. Certainly stiffer than some other solutions I have seen. I like the look and the length, plus how it gets the pivot point of the bipod closer to the bore. If I were to buy one, I would definitely want full length Arca grooves on the bottom of the rail, or at least 5 inches or so, back by the trigger guard, so I could mount the rifle to a tripod when I didn't want to shoot from the bipod.
Who knows. I can't tell for sure if there is anything Arca rail on it from the photo. That might be a Picatinny or a spigot type mounting point for the bipod.