M40A3 with PDI internals. Has a new high power spring. (Little stiff so needs to break in a bit) Used a few time in private games but never truly fielded. Includes scope and bipod. Old spring included which shoot a upwards of 450fps with .2. New spring fires 500 with .2 but with high weighted bbs the FPS will be just right. Shipping is free and I take Venmo. Contact me for more info and questions.
FPS (w/ .20g BB): 500