Evolution Airsoft Recon M4

Used 3 times, very good condition. Spring has been lowered for higher ROF which is shooting 20 rps on a 9.6v at 310fps. Quick change spring so can easily change the fps higher if desired. Can include 2 Nuprol metal mid caps if needed with the already included mid-cap. Open to reasonable offers, price includes postage and PayPal fees Just need the space as collection is getting out of hand