A crossbow.

Mechanical device that attaches one component, such as a science instrument, to the structure of the telescope and holds it in precisely the right place.

A movable device used to secure a part or piece in place relative to another. As applied to firearms, various types of latches are employed to hold barrels, cylinders, etc., in position and to enable these parts to be moved for loading, unloading and disassembly.

Successfully grip a hold, a skill that is dependent on contact strength, accuracy, and timing.

ON: Attaching elevators to a section of pipe.

Mechanism for holding crossbow bowstring in cocked position, and for releasing bowstring when trigger is pulled. Synonym for catch.