and fixed sights

BBs glow brighter with tracer unit

Using the FCU's five position joystick and LCD display you will be able to easily adjust such functions as the systems cyclic rate

"This item is only compatible with airsoft products and can not be used with any real firearms

Railed upper receiver prefect for optics

Lancer Tactical Green Laser w/ 20mm Standard Rail Mount (Black) buffer tube and fixed sightsSpecifications Brand: Lancer Tactical Laser Color: Green Material: Metal Weight: 0. 15 lbs Battery: 1x 14250 (Included) Features Tough tempered metal alloy construction Compact frame Mounts to picatinny weaver rails Battery is included Package Includes: 2x Allen Keys, 1x 14250 Battery, 1x Laser,