Baikal (IZH) MP-655K


Baikal Viking (MP-446C based on Yarygin pistol )
(9 x 19 mm Luger)

Baikal (IZH) MP-655K
Replica Of:
Baikal Viking (MP-446C based on Yarygin pistol, 9 x 19 mm)

Made In:
177, steel BBs (100 shot hopper) and lead pellets (8-shot rotary magazine)
Air Source:
CO2, 12 g Powerlet
cleaning rod, valve seals, magazines (1 pellet, 1 BB)

Recommended Pellet or BB:
RWS Match BBs, RWS R-10 (light) Match pellets
Weight (lb)/Length (in):
1.46, 7.3
Body Material/Finish/Grips:
metal (slide)/polymer
(frame), black, polymer
Barrel Length (in)/Material/Rifled:
4.4, steel, yes
Trigger Action:
Trigger Pull (lbs)/Adjustable:
9.6 (DA), 7.0 (SA), no
Sights (front/rear):
fixed, fully adjustable
Velocity (fps):
Sound Level (dB):
Thickness of Pellet Holder (in): 0.272
Manufactured Dates:
2008 - present
98%, yes, yes
Serial Number:
Comments: This pistol is manufactured in Russia by the Baikal company (also known as IZH or IMZ, short for Izhevsky Mekhanichesky Zavod). Baikal also makes the 9 x 19 mm MP-446C Viking firearm on which this airgun is modeled. The Viking firearm is the sport version of the Yarygin pistol adopted by the Russian military in 2003. The MP-655K is an excellent replica of the Baikal Viking pistol and has a metal slide and polymer body just like the firearm. This is a very good action air pistol that incorporates several novel design features that make reading the manual a requirement. It is capable of firing both steel BBs and lead pellets using 8-shot rotary magazines similar to those used in many Umarex pistols. When an air pistol has a rifled barrel and shoots both pellets and BBs, I usually do not test the gun with steel BBs to avoid damaging the rifling. However, I made an exception in this case because the MP-655K is so well designed for shooting BBs and so accurate when doing so. I first tested the performance of the gun with lead pellets and then switched to steel BBs. After running about 200 BBs through the gun I retested it with pellets. The before-and-after pellet tests were identical. The first unusual feature you will encounter with this pistol is that the barrel is not where you expect it to be. There is a false barrel located in the "normal" position that is actually part of the BB feeding system. The real barrel is located below the false barrel in what is normally the recoil guide rod position. The false barrel is wrapped around a spring-loaded BB pusher system and holes in the top of the false barrel indicate roughly how many BBs are left in the 100-shot hopper. BBs from the hopper are pushed toward the 8-shot rotary BB magazine. The magazine rotates with each pull of the trigger and picks up BBs from the hopper. This mechanism is remotely similar to that used by Crosman in its Western six-shooter pistols (Hahn 45 and Crosman 36). However, Baikal goes one step further by placing a powerful magnet in the rotary magazine so that BBs quickly and reliably find their way into the vacant holes in the magazine. The magnet is so strong, that once the BB magazine is placed in the gun, a tool must be used to lift it out. If all you ever plan to do is shoot BBs with the MP-655K, the BB magazine can be left in the gun. To shoot lead pellets, the BB magazine is replaced with the pellet magazine. Pellets are loaded into the pellet magazine by pushing them in from the side that contains the ratchet teeth. The magazine should be placed on a smooth hard surface and the pellets pushed in (seated) until their heads are flush with the front face of the magazine. If pellets are not seated properly, they will come loose and keep the trigger from being pulled (the MP-655K has a mechanism that blocks the rotation of the magazine if an empty chamber is detected). All of the controls on the MP-655K are functional (mag release, safety lever, slide lock lever, hammer) and it has an excellent, fully adjustable, rear sight. Although the metal slide moves forward and back for loading, the gun does not incorporate a blow-back function and pulling the slide back does not cock the hammer. The pistol can be disassembled for cleaning by removing the slide lock lever and pushing back and up on the slide to remove it from the frame.

The trigger pull on the MP-655K is heavy when firing the gun in double-action mode. It lightens a little for single-action shooting. The trigger pull has the roughness associated with almost all airguns that use the trigger to rotate a magazine prior to firing. The trigger breaks cleanly after the magazine rotation has occurred. The shape of the trigger and its sharp edges take some getting use to. I got a blister on my trigger finger after putting 200 shots through this gun over a period of two hours. The MP-655K exhibited excellent accuracy with both pellets and BBs. RWS R-10 pellets work very well and so do Crosman Premier Super Match pellets. Among the BBs tested, the RWS Match BBs stood out from the rest of the field. Shot-to-shot consistency was very good as shown in the photos below for rapid fire shooting. The muzzle velocity measurements are on the low side for airguns in this category and do not reflect those claimed by the manufacturer. Interestingly, both lead pellets and steel BBs produced about the same average velocities. There was also little difference in the velocities produced by single-action vs. double-action shooting. It seems that Baikal's engineers opted for efficiency over power when designing this gun as it gets at least 80 good shots per CO2 cylinder. While the MP-655K is expensive, unusual in its design, and takes some practice to use properly, if you give it a chance, it just might become your favorite action air pistol. It is certainly among the top shooters on my list.

Pyramyd Air Report on the Baikal MP-655K (Part 1).
Pyramyd Air Report on the Baikal MP-655K (Part 2).
Pyramyd Air Report on the Baikal MP-655K (Part 3).
Pyramyd Air Report on the Baikal MP-655K (Part 4).
Baikal MP-655K Web Page
Baikal Viking Web Page
Baikal Yarygin Web Page

Performance: Measurements were made on 4/5/10 at a temperature of 73 F and 14' elevation. A ten shot string was fired from a bench rest at 15' using RWS R-10 Match pellets (7.0 gr) and a fresh CO2 cartridge. The highest velocity measured was 345 fps, the lowest was 297 fps (average of the 10-shot string was 313 fps, s = 17). Velocity tests were repeated using RWS Match BBs (5.4 gr) and the same CO2 cylinder as used in the pellet tests. The highest velocity measured was 307 fps, the lowest was 299 fps (average of the 10-shot string was 302 fps, s = 3). A wide variety of pellets and BBs were tested for accuracy with this gun. The results are outlined below. Click here for a description of the measurement methods.

RWS R-10 Match (7.0 gr) pellets. A six shot string shot with open sights fired from a rest at 15' grouped at 0.35". Click the thumbnail to see a larger image.

RWS R-10 Match (7.0 gr) pellets. Rapid fire test shooting 8 pellets in 5 seconds from a rest at 15'. This group measured 0.46" and was typical of groups for this type of test.

The MP-655K was tested using the following pellets: RWS Meisterkugeln (6.9 gr), RWS R-10 Match (7.0 gr), RWS Hobby (7.0 gr), H&N Finale Match (7.3 gr), JSB Match Diabolo (7.4 gr), and Crosman Premier Super Match (7.9 gr).

RWS Match BBs (5.4 gr). A six shot string shot with open sights fired from a rest at 15' grouped at 0.55". Click the thumbnail to see a larger image.

RWS Match BBs (5.4 gr). Rapid fire test shooting 10 BBs in 8 seconds from a rest at 15'. This group measured 0.91" and was typical of groups for this type of test.

The MP-655K was tested using the following BBs: RWS Match (5.4 gr), Daisy Avanti Match (5.5 gr), and Crosman Copperhead (5.1 gr).

Right Profile: The safety and CO2 carrier release (this is equivalent to the magazine release on the firearm) are both ambidextrous.

Left Profile 2: The hammer is recessed and can be pressed down to fire the gun in single-action mode. Pulling the slide back does not cock the hammer.


Left Profile 3: The metal slide has two locking notches. When locked in the full back position, the BB indicator holes in the false barrel can be seen. There is no blow-back function and racking the slide does not cock the hammer.

Front View: What appears to be the barrel located in the slide is actually a false barrel that is part of the BB loading system. The real barrel is located below the false barrel and also functions as the recoil spring guide. The trigger is offset in the frame and is 1/4" closer to the right side of the frame than the left.



Right Side Markings:

Left Side Markings:

Takedown:  To disassemble the MP-655K: 1) remove the CO2 carrier, 2) move the slide to the first notch and push the false barrel all the way forward, 3) remove the rotary magazine if one is installed, 4) push the slide all the way to the back and lift up, then push the slide forward and off the frame, 5) press the slide lock lever from the right side until it comes all the way out on the left side, 6) lift up and forward to remove the barrel/trigger/hammer assembly, 7) push the false barrel forward to remove the false barrel and pusher mechanism from the barrel/trigger/hammer assembly.

The picture below shows the relationship of the false barrel to the BB pusher mechanism.

Loading CO2: The CO2 carrier contains the valve, CO2 cartridge, and a simple BB storage compartment. The screw for tightening the CO2 cylinder is hidden under the removable base. The CO2 carrier, which is designed to look like the firearm's magazine, is released by pressing the button located behind the trigger. The valve design is unusual in that the valve is oriented with the valve stem pointing straight up. The hammer strikes the valve with a downward motion. The base plate of the CO2 carrier is removable. Inside is storage for about 100 extra BBs that can be poured into the hopper on top of the gun when needed.


Loading Pellets and BBs: Loading or removing a rotary magazine for pellets or BBs begins by pulling the slide back to the first locking notch and then removing the CO2 carrier. Step 1: push the false barrel forward toward the muzzle as far as it will go. Step 2. insert (or remove) the rotary cylinder. Step 3: Push the front of the false barrel back toward the rear of the gun until in covers the rotary cylinder. Step 4: push down on the slide lock lever to release the slide. The gun has a mechanism that prevents the trigger from being pulled when the rotary cylinder is empty. Do not force this or you risk breaking the small lever that indexes the magazine. To dry fire the gun, remove the rotary cylinder.


The MP-655K comes with two metal rotary cylinders (magazines) for holding pellets or BBs. The BB cylinder contains a magnet that holds BBs in the cylinder. Cylinders are loaded with the ratchet mechanism facing the rear of the gun.


Loading Pellets: Pellets are inserted in the magazine from the ratchet side. The holes in the cylinder taper to the front. This requires each pellet to be seated by pushing them in until they are flush with the front of the magazine. The tapered end of the cleaning tool works well for this. If pellets are not properly seated, they will slip out when the cylinder is inserted preventing the trigger from being pulled.


Loading BBs: Up to 100 BBs can be loaded in the compartment in front of the magazine. A spring-loaded pusher keeps pressure on the BBs and serves to indicate approximately how many BBs remain in the compartment. The pusher, which is gray in color, can be seen through the holes in the false barrel. When the pusher is visible in the end (largest) hole, there are about 80 to 100 BBs remaining. The second hold indicates about 50 BBs remaining and the last hole (smallest) indicates approximately 30 BBs are left in the compartment.

The magnet in the BB magazine pulls BBs from the loading compartment quickly and reliably. The magnet in the BB magazine makes the magazine difficult to remove. The tapered end of the cleaning rod works well for prying the BB magazine from the chamber.


Packaging: The MP-655K comes wrapped in oiled paper and is supplied with replacement seals, two rotary magazines (1 for pellets and 1 for BBs), and a cleaning/unloading tool. The picture on the front of the box shows an early version of the gun that lacked the accessory rail under the slide.

Schematics diagrams for the MP-655K.



 Copyright 2010