The Remington model 11 semi-auto shotgun was licensed by John Browning & introduced in 1905. The model 11 was the first autoloading shotgun produced in the US. It was made in 12 ga only. It was practically identical with the then current Browning Auto 5 & shared some parts interchangeability. It was to become also known as the square sterned or humpback model by some. It held 4 rounds in the magazine. The butt plate was made of hard rubber, the stocks were non checkered & had a pistol grip. The early safety was a sliding bar in front of the trigger. The carrier was one piece. The front trigger plate used a pin retainer & the rear screw had not lock screw. Initially the firing pin was similar to the rectangular Browning version. There was no left hand extractor in the breechbolt as the case rim is held in position by the LH side of the barrel extension.