Selling my fully built MK18 Polarstar Jack. It’s a rifle made for both CQB maneuverability and long range accuracy. The rifle has a Polarstar Jack installed to power it. It’s the go to engine for many HPA users because it’s the most beginner friendly HPA engine if you were to instal, test, and tune it yourself but if you’re buying it from me, it’s all been done for you. Has a great rate of fire and is a great pick for beginners and experienced players alike It’s a full metal body which is extremely comfortable to hold. It has a finely tuned speed trigger to make shooting fast super easy. Shoots 400fps at 100psi with a .25g bb and up to 60rps. FPS range is . Comes a shown but without attachments or magazine. Tracer unit, battery charge, battery, fcu, airtank, regulator, and line can be added for extra. NO TRADES FOR HICAPAS, SNIPERS, OR GBBRS Parts list: