What kind of mods if any have you guys done to your KSG's? Mag extentions, Kydex cheek weld adaptors etc and what's the verdict? Anyone figured out a good way to use a single point on this bad boy? Or what slings are you using? Vert grips or AFG's? Optics? <---- what are you using if anything? Anyone had any issue's with theirs? FTF's FTE's, any ammo to watch out for good or bad, etc?