The All-New 990 AfterShock. Small Size, Big Tactical Performance. Ultra-compact and easy to manuever, it delivers 5+1 semi-auto convenience paired with a host of functional tactical features. The fixture is seamlessly attached to the receiver, and it's 5mW beam is adjustable for windage and elevation. The unit has multiple touchpad activation points. The 990 AfterShock Grip is uniquely shaped to provide a firm grip and to minimize felt recoil. It features a rubberized palm pad for shooting comfort, and a rear swivel stud port. Inside, the 990's durable gas system and a host of corrosion-resistant internal parts/finishing (nickel boron-coated gas piston, magazine tube, hammer and sear), plus an enlarged/beveled loading port, elongated elevator, and anodized follower combine for smooth operation. Outside, there's the ergonomically-designed AfterShock grip with rubberized palm pad, a streamlined forend with Mossberg signature texturing, and an embossed strap for a solid hold; plus a magazine tube extension with M-LOKA(R)mounting slots on the sides and bottom for easy accessory flexibility.