To not have people confused anymore, here's a walkthrough of the Swedish made Versions of the FN FNC.
From the top:
AK5(A). Called AK5A when AK5B was introduced.
The first versions of the Ak 5 family were made by the Swedish company FFV Ordnance AB (now part of Saab Bofors Dynamics) under license from FN, with deliveries starting in 1986. The Ak5 is still in the inventory of the Swedish Armed Forces, but is no longer issued to soldiers, having been replaced by the Ak 5C and Ak 5D. This version uses fixed iron sights, and the Swedish Armed Forces have estimated that the maximum practical distance is 400 meters, but it can be used at longer ranges. This brings it in line with the M16, using the Swedish Armed Forces definition of maximum practical distance.
As issued, the Ak 5 did not have a bayonet lug. A bayonet lug adaptor (using the Ak 4 bayonet) is fitted to some rifles for ceremonial duties, such as the Royal Guards at the Stockholm Palace.
AK5B
The Ak 5B is the designated marksman version of the Ak 5. Modifications include fittings for a 4×25.5 SUSAT L9A1 tritium sight, a cheek pad on the buttstock, and removal of the iron sights. This weapon is typically carried by squad leaders. This version weighs 4.8 kg (without magazine) and 5.4 kg (with full magazine). Approximately 5200 of this version were made.
AK5C
At the beginning of the 21st century the Swedish military wanted a more modern assault rifle for integration in a future Swedish soldier program. The rifle had to have a Rail Integration System, better ergonomics and improved reliability. Instead of purchasing a new assault rifle, Sweden opted to modify the existing Ak 5(B) rifle family already in use reducing program risks and costs.
Before the Ak 5C went into mass production, it was thoroughly evaluated. This was done by having certain units use an experimental model designated Ak 5CF where "F" stands for the Swedish word försök (in this context, experiment or trial). During the trial over 1 million rounds were fired and the rifles exhibited a Mean Rounds Between Stoppage value of 3,500. The test users found the test weapon too heavy and long so the barrel length was reduced to 350 mm to reduce overall weight and move the center of gravity closer to the user. These tests were completed in June 2005 and four months later, the FMV signed a contract with Saab Bofors Dynamics covering the modification of nearly 40,000 AK 5 assault rifles, which took the company approximately 4 years to implement. Serial deliveries were scheduled to begin in June 2006 and the Ak 5C was first issued to priority units serving in Afghanistan (ISAF), Chad (EUFOR Chad/CAR), and Kosovo (KFOR).
The Ak 5C is the modernized version of the original Ak 5, following the trend of modular weapons. One of the most significant improvements is the MIL-STD-1913 rail system to which a variety of different optics, lights and sights can be mounted, such as telescopic sights and image intensifiers. The double gas position, iron sights and bolt catch of the original Ak 5(B) rifle family were discarded and the surface finish is black instead of green.
AK5D
The Ak 5D has a shortened barrel and handguard. It also features the MIL-STD-1913 rail system for easy mounting of a variety of sights.
Due to the smaller dimensions of the carbine, the Ak 5D is especially suited for ranger/urban warfare units and vehicle crews who often benefit from a more lightweight and compact weapon when taking into account the nature of their assignments and the environments in which they often operate. The Swedish police are also equipped with a version of the Ak 5D; see below.
The newest Ak 5D Mk2 version has the same upgrades as the "C" model but retains the shorter barrel.
CGA5P
Some units of the Swedish police are equipped with a special version of the Ak 5D called CGA5P or sometimes (incorrectly) Ak 5DP. Essentially it is a black (instead of the regular military green) Ak 5D with automatic fire capability disabled by a hex screw. Unlike the Ak 5D, the police version has fixed sights but is still equipped with the MIL-STD-1913 rail system to allow the use of telescopic sights or red dot sights. Unlike its military counterparts (except for the AK5C version), the police version has safety catches on both sides of the weapon.
This is accurate to my experience, if any of it seems odd please send me a message, we never stop learning.
There are more versions of the AK5 but theese are the ones that were actually implemented in the Swedish Armed Forces. THe AK5's with a underbarrel grenade launger are the same, only the handguard is exchanged for a handguard with a grenadelauncher permanently attached. It is however technically called "AK5C with underbarrel grenadelauncher"
