Remington 510 Targetmaster Smoothbore 22 Shot Shell Single-Shot Rifle

Remington 510 Smooth Bore in .22 Shot Shell. The bolt action, single-shot 510 Smooth Bore does not have rifling and uses .22 caliber shot shells. The bolt cocks on opening, whereupon a small red indicator protrudes at the back to indicate its status. It has double locking lugs, and dual extractors. No box.