Upgraded heavily This is the 16 inch version with monster range! - fast hop - g&g green bucking shaved for flat hop - custom flat nub - S hop patch on barrel - APS m160 spring This thing with .40s flies bb's perfectly straight 300 feet! Thats not aiming the scope above the target either guys. This thing is a monster. I am open to trades - Tm recoil shock - DMR builds