Manufactured in 1910 as a Third Model with integral dust cover rail on top of the receiver and dust cover with serrations at the rear. The top of the barrel is marked with the standard two-line address/King's patent marking and the caliber marking. The upper tang has the three-line model and trademark information, while the lower tang has the serial number. It is fitted with a block blade front sight, folding ladder rear sight, and a saddle ring on the left of the receiver. It is mounted with a smooth forearm and straight grip stock with a carbine buttplate.