The Model R51 is an updated version of the original 1917 John Pedersen
designed Remington Model 51.  Unlike the original
however, the R51 is chambered in 9mm (the original was available in
both 32 and 380ACP). This is an internal hammer semi-auto, and
features a 3.4-inch barrel, a grip safety, drift-adjustable rear
sights, a carry-melt finish, and a 7+1 capacity. Its “PPK-style”
low bore axis is designed to generate less muzzle rise, and also
lower perceived recoil. This pistol comes with two flush-mount
magazines.
Specifications:

Weight: 23oz
Overall Length: 6.68″
# of Mags: 2