Step out on the battlefield with the semi/full auto GFM4 electric airsoft rifle. The GFM4 features an adjustable stock that lends a comfortable shooting experience for users of any body type, a high-capacity 300 rd magazine, and a shot velocity of 335-345 fps (using .20g BBs). The carry handle is removable and exposes a Weaver/Picatinny tactical rail for mounting optional accessories. Fine tune the GFM4's long range accuracy with the adjustable hop-up unit. Features: Semi/full automatic Adjustable stock High-capacity magazine Removable carry handle Weaver/Picatinny accessory rail Adjustable hop-up 33.25" with full extended stock Heavy weight synthetic AEG Made in Taiwan