Patent ID: 7726230

Claim:
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.