Semiautomatic pistol

A semiautomatic pistol, comprising:

• a barrel having a front portion and a rear portion, the barrel having a top wall extending distally from the front portion of the barrel, forming the rear portion of the barrel;
• a receiver immovably attached to the barrel and forming a longitudinally extending eject port below the top wall of the barrel, the eject port having a rear;
• a breechbolt slide post extending downward from the top wall into the receiver at the rear of the eject port;
• a breechbolt having a rear and side arms extending longitudinally to the rear of the breechbolt, the side arms having interior walls defining indentations forming a rotational pivot axis of the breechbolt, said indentations movable from a forward position apart from said slidepost to a rearward position substantially aligned with said slidepost;
• the interior walls extending longitudinally to form a channel extending from the pivot axis to the rear of the breechbolt, the breechbolt channel slidably engaging the slide post;
• the breechbolt rotatable about the slide post when the indentations are in the rearward position;
• a first sight attached to the front portion of the barrel;
• a second sight attached to the rear portion of the barrel;
• a grip handle attached to the receiver;
• means for carrying a plurality of rounds in the pistol;
• and
• means for semiautomatically firing the rounds;
• wherein the barrel and the sights remain in a fixed position relative to the receiver during the firing of the rounds as the breechbolt reciprocally slides about the post.