For its size, this thing is a BEAST. Feels hefty, like the real deal, Hits hard(370-380FPS), and high ROF. It was crazy hard to find a stick battery that’s small enough to fit inside the tiny pocket right above the gearbox . I took the rail system off of my old Maruzen Mp5 Charger GBB, so that I could put some sort of a PEQ box or a fore grip with a bigger battery in it. It took awhile, but I found a SOCOM GEAR 11.1 V 1000mAh that fits snugly inside now. Just in case 11.1V is too much for ya, I will add on a Firefox 7.4V stick too. NO LIPO CHARGER INCLUDED! This sale comes with a fully functional MP5K, with Maruzen CQB rail system, short fore grip, faux suppressor, high cap and a low cap magazine, instruction manual and a folding stock that is broken, but maybe able to TLC.. SOLD AS-IS. NO TRADES. NO RETURNS. No discounts. Only payment I take is HOPUP. It will be shipped in its original box, along with a blaze Orange tip. This little punisher needs a good home. Get it!