Abstract: A blowback assembly for an airgun includes a valve body and a valve stem disposed within and movable with respect to the valve body. The valve stem has a stepped outer profile and the valve body defines a passageway having a stepped inner profile. The valve stem is normally biased against the valve body to form a seal containing a compressed gas in a valve stem chamber forming part of the passageway of the valve body. When the valve stem is moved from the normal position, compressed gas is expelled from the valve stem chamber to cock the airgun and to fire a projectile from the airgun.

Abstract: A bore sight including a rear casing, a front casing sized to cooperatively engage the rear casing and define a first cavity and a separate second cavity, a laser disposed within the first cavity, and a battery in the second cavity. The bore sight further includes a switch selectively connecting the battery and the laser, an elongate mandrel releasably engaging the rear cavity, the mandrel having a free-end, a tapered seating collar having a through hole sized to receive a length of the mandrel, the seating collar being a separate components from the mandrel and the rear casing, wherein the seating collar can be formed of a different second material than the mandrel and the rear casing; and an adaptor releasably engaging a free end of the mandrel.

Abstract: A blowback assembly for an airgun includes a valve body and a valve stem disposed within and movable with respect to the valve body. The valve stem has a stepped outer profile and the valve body defines a passageway having a stepped inner profile. The valve stem is normally biased against the valve body to form a seal containing a compressed gas in a valve stem chamber forming part of the passageway of the valve body. When the valve stem is moved from the normal position, compressed gas is expelled from the valve stem chamber to cock the airgun and to fire a projectile from the airgun.

Abstract: An adjustable front sight includes a carrier with a spiral sighting blade mounted for rotation within a base attached directly or indirectly to a barrel. A progression of sight lands is formed along a peripheral surface of the spiral sighting blade. Rotation of the carrier in opposite directions moves different sight lands into a sighting position at varying heights above the barrel for making elevation adjustments.