Tyrex PPA-K-01 (by ZMZ)


 


Kedr PP-91 (9 x 18 mm Makarov)
 

Info:
Manufacturer/Model:
ZMZ Tyrex PPA-K-01
Replica Of:
Kedr PP-91 (9 x 18 mm Makarov)

Made In:
Russia
Caliber/Ammunition/Feed:
177, steel BBs, 25-shot magazine
Air Source:
CO2, 12 g Powerlet
Accessories:
cleaning tool, valve seals, spare grip
Recommended Pellet or BB:
RWS Match BBs
Weight (lb)/Length (in):
3.24, 11.13 (closed) - 20.13 (open)
Body Material/Finish/Grips:
metal, painted and blued steel, plastic
Barrel Length (in)/Material/Rifled:
4.83, steel, no
Trigger Action:
SA
Trigger Pull (lbs)/Adjustable:
>12, no
Sights (front/rear):
adjustable for elevation
, fixed
Velocity (fps):
328 to 394
Sound Level (dB):
97
Thickness of Pellet Holder (in): N/A
Manufactured Dates:
2008 - present
Condition/Manual/Box:
95%, yes, no (did not come in box)
Serial Number:
 080183
 

Comments: The Tyrex PPA-K-01 air pistol is made in Zlatoust, Russia at the Zlatoust Machine-Building Plant (Zlatoustovsky Mashinostroitelny Zavod - the abbreviation for the Russian factory name is Zmashzavod or simply ZMZ). The Tyrex is distributed by the German firm Waffen Schumacher GmbH (this explains the German language instruction manual). Since the Tyrex is not currently distributed in the U.S., I ordered this unit from a retailer in the U.K. The Tyrex is an excellent, albeit expensive, replica of the Kedr PP-91 (9 x 18 mm Makarov) submachine gun used by Russian security forces. ZMZ also makes the Kedr PP-91 and a significant number of Kedr parts are used in the construction of the Tyrex. Just like the Kedr PP-91 on which this airgun is based, most of the gun is made from folded sheet metal with machined steel parts used where added strength is required. Both the Kedr and the Tyrex have polymer grips. The fit and finish of the Tyrex are pretty rough, however, the gun has a solid feel and operates reliably.

Technical characteristics (from ZMZ website)
Caliber: 4.5 mm (.177 cal)
Dimensions (mm): 255 x 190 x 50
Weight (kg): 1.5
Muzzle energy: 3.0 J
Muzzle velocity (m/s): at least 100-120 (328 to 394 fps)
Magazine capacity: 25
Shooting mode: single action and automatic (some models)
Rate of fire in automatic mode (shot/min): 600

Two different versions of the Tyrex exist: one is a semi-auto model and the other is both semi-auto and full-auto. However, even the semi-auto model can usually be made to fire in full-auto mode by pushing the fire select lever about midway between the position marked "F" and the unmarked position. All tests on the Tyrex were conducted in semi-auto mode.

To operate the Tyrex, first engage the safety and then load a CO2 cartridge in the grip. Make sure the CO2 cylinder is properly seated before tightening the piercing screw. The piercing pin is fairly short, so it is best to use CO2 cylinders that do not have depressions in their tips (Crosman cylinders work well). Loading BBs into the Tyrex magazine is a labor intensive process. BBs are loaded in the magazine one-at-a-time by pushing down on the top of the magazine and then pushing each BB through the loading gate. (Note: the end of the magazine follower has a captive ball that looks like a BB. Do not attempt to remove this.) The magazine will hold a maximum of 25 BBs. Push the magazine into the gun and then pull back on the cocking handle. Move the safety lever to the firing position (labeled "F") and the gun is now ready to fire. The trigger has a very heavy pull (greater than 12 pounds) but breaks cleanly. The Tyrex can be fired like a pistol or the stock can be extended and used like a carbine. When the stock is extended, the rear sight changes from an aperture to a notch. Unfortunately, the short stock places the shooter's eye too close to the rear sight to make the notch sight useful. The blowback action of the Tyrex automatically recocks the gun after each shot giving the gun a kick similar to a .22 cal rim fire pistol. Since the blowback action uses some CO2 during each shot, the CO2 cylinder cools down rapidly. When the CO2 cylinder is nearly exhausted (or very cold), the gun will often go full-auto. On occasion, the last BB in the magazine will not be properly loaded and will fall out of the magazine well when the magazine is removed. The Tyrex gets about 85 good shots from a CO2 cylinder, which is very good for a blow-back design. Make sure the CO2 cylinder is completely empty before attempting to remove it. Otherwise, the cylinder can shoot out the bottom of the grip under considerable force.

The performance of the Tyrex is only fair, especially considering its very high price. While it has a high fun factor and is very realistic in both appearance and operation, it will probably be more interesting to collectors than to shooters.

ZMZ Website for the PPA-K Tyrex air pistol

Performance:
Measurements were made on 12/17/10 at a temperature of 69 F and 4980' elevation. A ten shot string was fired from a bench rest at 15' using RWS Match Grade BBs (5.4 gr) and a fresh CO2 cartridge. The highest velocity measured was 321 fps, the lowest was 307 fps (average of the 10-shot string was 313 fps, s = 4.0). A wide variety of BBs were tested for accuracy with this gun. The results are outlined below. Click here for a description of the measurement methods.


6-shot group
 
RWS Match Grade BBs (5.4 gr). A six shot string shot with the aperture sight fired from a rest at 15' grouped at 1.80". This specimen of the Tyrex shot about 2.5" below and 0.50" to the right of the point of aim at 15' with RWS Match Grade BBs. Click the thumbnail to see a larger image.
 

5-shot groups
The following BBs were tested with the Tyrex PPA-K-01: RWS Match (5.4 gr), Daisy Avanti (5.5 gr), Crossman Copperhead (5.1 gr), and Daisy Precision Max (5.3 gr). The best group was produced by the RWS Match Grade BBs (1.42" c-t-c). All images shown represent 5-shot groups fired with the aperture sight from a rest at 15'.
 

 



 
Right Profile: Right side view with stock folded.

 
Left Profile 2: When the stock is folded, the aperture (peep) sight is the rear sight. When the stock is unfolded (open), a notch sight serves as the rear sight.




 


 
Left Profile 3: Left side view with stock open and the notch rear sight visible.
 

 
Front View:

  


 
Right Side Markings:

 
Left Side Markings: The fire-select lever switches the gun from safe (SD) to single-shot (F) and, if moved just below the "F" position, will put the gun in the full-auto mode.


 
Loading CO2: The CO2 cylinder is loaded in the grip. The cylinder must be inserted at an angle and then straightened. Before tightening the piercing screw, rotate the cylinder by hand to ensure that it is seated properly. Do not overtighten the cylinder. The piercing pin is short, so CO2 cylinders with no depression in the tip work best.

 

 


 
Loading Steel BBs: Up to 25 BBs can be loaded in the magazine. A spring-loaded follower keeps pressure on the BBs. The follower has a captive ball attached that looks like a BB. Do not remove this ball. Push down on the tab located at the top of the magazine and load BBs one-at-a-time through the loading port.


 

Packaging: The Tyrex comes with a cleaning tool, spare valve seals, a spare grip, and an instruction manual printed in German. All parts are wrapped in oiled paper. My Tyrex did not come with a factory box.

Schematic diagrams for the Tyrex PPA-K.





 

 

 Copyright 2010