disconnector
isolator switch

A disconnector system will also prevent the weapon from firing until the whole action is fully closed.

Safety regulations of the utility must prevent any attempt to open the disconnector while it supplies a circuit.

The disconnector ensures the pistol can only fire semi-automatically.

A disconnector ensures the pistol fires in semi-automatic mode only.

"Not all pump shotguns will do that, 'cause most of them use a disconnector.

The Model 1897 is an external hammer shotgun lacking a trigger disconnector giving it the ability to slam fire.

When the trigger is still under pressure by the firearm operator, the disconnector will not recede to its resting position.

The SR9 also features a magazine disconnector.

Unlike most modern pump-action shotguns, the Winchester Model 12 had no trigger disconnector.

It has a positive disconnector, a push bolt safety that blocks the sear and disengages the trigger bar.

A trigger disconnector is a type of safety in a firearm, which prevents the trigger from being held down after a shot has been fired.

At the end of its travel, the trigger bar is tilted downward by the disconnector, releasing the striker to fire the cartridge.

He'd bought it with his own money rather than use the Remington 870s the rest of the Department were issued-and he hadn't added the disconnector.

The civil guard versions are modified by the removal of the sear and the modification of the disconnector to be semi-automatic only.

They share the trigger mechanism fitted with an escaping disconnector, which is typical of all Beretta pistols of that period.

But because of the spring tension the disconnector is under by the firing pin block, the weight of the trigger pull is increased significantly.

Also, the USP does not have a magazine lockout feature (also known as a magazine disconnector).

The PPQ trigger pull is entirely due to the trigger and disconnector springs.

The forward setting of the selector lever ("30"-automatic fire) disables the disconnector, and the left striker catch meshes with the sear mechanism.

The pistol has a hammer striking mechanism (with an exposed hammer) and a single-action trigger with a disconnector, which enables semi-automatic fire only.

Pump action shotguns lacking a trigger disconnector can be slamfired, on purpose or otherwise, if the trigger is kept depressed whilst cycling the action.

In 1916 Colt engineer George Tansley invented a third safety feature for the pistol, the magazine safety disconnector, which prevented accidental firing with the magazine removed.

Additionally, in approximately the 280,000 serial number range, the left side slide inscription was altered to include the patent date for the disconnector, also known as the "Tansley Device".

Reclosers may cooperate with down-stream protective devices called sectionalizers, usually a disconnector or cutouts equipped with a tripping mechanism triggered by a counter or a timer.