Iron sights, there is a dove-tail side rail for optical and night sights
The AK-104 is a carbine variant of the AK-103. It's chambered to fire 7.62×39mm ammunition and thus feeds from any standard 7.62x39 AK pattern magazine.
Design
The AK-104 is a 314mm (12.4 in) barreled carbine in the AK-100 series of rifles, the dimensions of the gun is the same to other carbines of the AK-100 series. However, the AK-104 also features a solid, side-folding polymer stock, unlike the shorter, skeleton-stocked AKS-74U. The AK-104 uses an adjustable notched rear tangent iron sight calibrated in 100 m (109 yd) increments from 100 to 500 m (109 to 547 yd). The front sight is a post adjustable for elevation in the field. Horizontal adjustment is done by the armory before issue. The AK-104 has a muzzle booster derived from the AKS-74U.[2]
Protective coatings ensure excellent corrosion resistance of metal parts. Forearm, magazine, butt stock and pistol grip are made of high strength plastic.[3]
The AK-105 is a shortened carbine version of the AK-74M rifle. It has identical barrel length.
SLR-107CR
A civilian semi-automatic rifle utilizing a gas block almost identical to the one seen on the Russian original. However the CR is distinctive in having a 16” extended barrel to comply with U.S. regulations, typically shrouded by a false extend booster or simply exposed with a simple nut threaded on at the gas block. Produced in Bulgaria and imported by Arsenal Inc.
PSAK-104
A civilian semi-automatic series of firearms meant to duplicate the aesthetic of the AK-104. Examples in the series utilize a clone more similar to that of the Russian AK-104 gas block/front sight pattern as opposed to the Bulgarian SLR-107CR variant. Based on PSAK-103, however, it is distinct from other examples by utilizing the earlier AKM pattern bolt as well as other AKM pattern parts. Produced by Palmetto State Armory of South Carolina.
KR-104
A short-barreled rifle version of the AK-104 by Kalashnikov-USA.[4]
Small Production Examples
Due to the scarcity of AK-104 examples in the U.S. consumer market, a variety of small gunsmithing businesses and private individuals have obtained demilled AK-104 parts kits from overseas as well as a variety of U.S. made 922R compliant parts in order to build semi-automatic clones. In addition, a very small number of Saiga rifles built on the AK-104 assembly line in Izhevsk, Russia appear to have been imported and converted to the more customary AK-104 configuration.
Users
Egypt: Used By Special Operations Police and Black Cobra Unit alongside AK 103 and AK101[citation needed]
^Håland, Walter Christian (30 June 2017). "Russian Forces Assault Rifles Today". Small Arms Defense Journal. Vol. 9, no. 2. Archived from the original on 6 March 2019. Retrieved 21 July 2019.