The Remington Model 552 "Speedmaster" is a semi-automatic rifle

Semi-automatic rifle

A semi-automatic rifle is a type of rifle that fires a single bullet each time the trigger is pulled, automatically ejects the spent cartridge, chambers a fresh cartridge from its magazine, and is immediately ready to fire another shot...

 that can fire .22 Short

.22 Short

.22 Short is a variety of .22 caliber rimfire ammunition. Developed in 1857 for the first Smith and Wesson revolver, the .22 rimfire was the first American metallic cartridge....

, .22 Long

.22 Long

.22 Long is a variety of .22 caliber rimfire ammunition. The .22 Long is the second oldest of the surviving rimfire cartridges, dating back to 1871, when it was loaded with a 29 grain bullet and 5 grains of black powder, 25% more than the .22 Short it was based on...

 and .22 long rifle

.22 Long Rifle

The .22 Long Rifle rimfire cartridge is a long established variety of ammunition, and in terms of units sold is still by far the most common in the world today. The cartridge is often referred to simply as .22 LR and various rifles, pistols, revolvers, and even some smoothbore shotguns have...

 cartridges. Ammunition is fed from a tubular magazine under the barrel

Gun barrel

A gun barrel is the tube, usually metal, through which a controlled explosion or rapid expansion of gases are released in order to propel a projectile out of the end at a high velocity....

. The model 552 features a unique low profile left-side bolt handle that lends itself to a clean receiver appearance and slender profile. The rifle was manufactured from 1957 to 1988 in a standard model and is presently available in an upgraded "BDL" model, which has checkered butt stock and forearm with a gloss finish. Also included is an open sight

Sight (device)

A sight is a device used to assist aligning or aim weapons, surveying instruments, or other items by eye. Sights can be a simple set or system of markers that have to be aligned together as well as aligned with the target...

 and a 3/8" dovetail scope mount and a safety

Safety (firearms)

In firearms, a safety or safety catch is a mechanism used to help prevent the accidental discharge of a firearm, helping to ensure safer handling....

 on the trigger guard

Trigger guard

A trigger guard is a loop surrounding the trigger of a firearm and protecting it from accidental discharge.Some assault rifles can have their trigger guard removed or positioned as not to impair firing with gloves for example in Arctic conditions....

. In 1966 Remington offered this rifle with a special stamping of the company's 150th anniversary on the left side of the receiver.