Kwa ronin sbr 10", pdi 6.01 with flat hop modify bucking and nub, shoots very good, currently chronos at 400-405 fps with current spring, with spring guide turned up it shoots 450+ fps... 18" dmr upper has modify flat hopped angel customs 6.01 barrel, never fielded, test fired with new bucking with rifle turned up and shot super well with .32's Selling as combo with 2 kwa k120c magazines, 30-120 ends Only issue is fake bolt dust cover started bending so removed entire thing, bolt catch for electric cutoff for empty mags still works great, nothing wrong with it and shoots lasers May T.R.4.D.3 for upgraded pistol or sniper