Used A&K M249 MK2. Has a new charging handle, front and rear sight. The gun itself has some paint scratches. Lower and upper RIS included. Upgrades include a metal air nozzle, cylinder head and piston head, a piston with steel teeth, bull gear cnc hop up, upgrded bucking and nub (forgot what brand), madbull v2 6.03 mm 363mm tightbore barrel, and is wired to deans to the rear stock. It does have a hole drilled out in the stock because I used it for hpa, so any hpa system would work great in it. Not sure what the fps is, but it shoots like a laser with .30g bbs. Had a feeding issue before that has now been fixed. Has a Tan bipod grip and black aps angled grip on the lower RIS which are also included. Accessories include a M249 gearbox made for hpa, 2 A&K 1500rd sound and auto rechargeable drum mags with 2 pressure switches and chargers, 1 MAG 2500rd electric drum mag, upper RIS, stock bipod, spare M249 internal parts, original feed cover, dummy M249 feed belt, and OD LMG sling. Drum mags are not shown but are included. $280 Shipping not included in price. NO TRADES! Message me for more info.