The ASG MK13 Accuracy International Sniper Rifle.  Comes in a variety of styles.  This is a beast of an airsoft sniper rifle!  Mostly VSR internal parts compatible for upgrades.  

Anodized aluminum Keymod rail system
Aluminum outer barrel assembly
Steel flash hider (includes black flash hider with orange pre-installed)
Polymer & aluminum stock chassis
Folding rear stock with adjustable cheekrest & buttpad
QD sling sockets – for QD slings!
Keymod-mounted bipod stud mount
Spiral-fluted steel cylinder with steel cylinder head
CNC-machined aluminum piston with glide rings & steel base
Ported piston head with impact-absorption pad
Steel spring guide with bushing
90 degree steel trigger system
New style CNC-machined aluminum TDC hop-up chamber with steel arm
Inner barrel stabilizing rings
VSR-10 compatible for most internal parts – ready to upgrade with Action Army!

440 FPS w/.20g bb out of the box.

50 round magazine capacity (uses VSR magazines and Action Army mags)