The straight grip was the "standard" on the E. Remington & Sons Model 1873 Whitmore Hammer Lifter. A pistol grip was an extra cost option on their later Whitmore Lifter action doubles. By the time E. Remington & Sons introduced their top-lever Model 1882, the round knob pistol grip was standard. Semmer reports that he hasn't found a top-lever Remington hammer gun with anything but a pistol grip.