Valken Riser Mount - 1/2" 8 Slot Magazines The Hopup Chamber M4A unit

The Hopup Chamber M4A unit is designed to accept 21

this is much better

The Blaster gives a realistic muzzle flash

For use on Action Army AAP-01 pistols and WE Galaxy

Valken Riser Mount - 1/2" 8 Slot Magazines The Hopup Chamber M4A unitValken Riser Mount 1 2" 8 Slot The Valken Riser Mount allows you to mount scopes up high on the top rail of your gun. Helps with using a face mask and lining up sights on the field. Mounts on all standard top rails for all AEGs. The Valken 1 2 Riser Mount with 8 ring slots is a rifle accessory that mounts to a flat top picatinny rail. This tactical riser mount is used to raise an optics line of sight by 1 2, and locks firmly into place with two thumb