I ditched the box for a perfect case, fits with all components. I bought 2 within the last few yrs, took it and lubed up moving parts, less is more of course, shot a co2 threw it thats purely for lubrication of inner seals. Seals have zero dry rot in & out, this gun that gun, anything co2 always use “pellgunoil” on the tip of all co2’s b4 cracked. Or they blowout the compressed air. Co2 carts with oil stip help spread oil threwout gun and prevent dry rot on seals. Instructions included in zipper. Mags alone work fkawless. Plus the duek clip just looks awesome, especially when just held, not in use. The Parts in case. I bought the piccitinni and installed and put a red dot on have not zeroed in, just installed for your convenience. Also with folding mechanism, I used a velcro locking strap to go in and around than clipped shut so never worry the stock will swing open. Ontop of those they had no reason to have a hollowed out pistol Grip and forgrip, theres no screw in either. All replaced parts are all used with heavy duty pins, just like how the co2 goes in. The muzzle included, I left off, and it looked much better left off, never saw a mp5 with that style anyhow.. But ill include it, to each there own, right.. 1 c02, equalls 2mags 80 bb’s!!!! Almost exactly, the co2 drop off is basically 80 shots. Not many bb guns Guns left.