Classic Army MP5 A4 Airsoft Electric Gun
- 350 fps (0.2 g BB) / Range 180-200 feet
- Barrel Length: 9.5 inches / 24 cm
- Magazine Capacity: 200 Rounds
- Two Magazines Included
- Metal Upper Receiver and Gearbox
- Battery and Charger sold Separately
- Accuracy Proven
- Airsoft Gun Review Available - Click More Info
- Made in Hong Kong
Classic Army MP5 A4 Electric Rifle Manual
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This Classic Army MP5 A4 is the full stock version of the MP5 series. Some prefer the full stock which offers more stability, durability and battery storage. It is able to accept large type batteries for extended play time. It also includes a metal large MP5 flash hider.
Airsoft CLASSIC ARMY MP5A4 B&T Electric AEG Airsoft Rifle
Technical Specs :
MP5A4 B&T w/Flashlight Foregrip
Classic Army (CA)
Loaded: 6.46lbs (8.4 SubC batt and Magazine)
Mechbox Version 2
Magazine Included: 200round CA High Capacity.
Features of Interior Airsoft CLASSIC ARMY MP5A4 B&T
-Reinforced 6mm Gearbox: The 6mm CA mechbox, although not the top of the line box in the CA lineup, is more than capable of accepting higher energy springs. 1.49j (400fps w/.2s) would be the upper limit with a reasonable expectation of mechbox durability.
Why this is important: The defining characteristic of a reinforced mechbox is with the thickness of metal near the front of the box as well as surrounding the gears themselves. The extra metal support at the rear of the box removes any flex or binding with the gears themselves, while the front is stronger to withstand a heavier spring impacting the cylinderhead.
-Factory metal bushings: The metal bushings provided are decent and are industry standard level.
Why this is important: Some manufacturers still install a plastic bushing rather than metal in the gearbox shell from the factory. Normally, the first item to be replaced is the plastic bushings. They tend to wear quickly or fracture causing a catastrophic failure to the gears. The metal bushings provided is a nice factory upgrade that end users don't have to install out of their own pocket.
-1J Spring (328fps w/.2):
Why this is important: You have enough to play outside and have at least some accurate range (80-120ft or so), but are also limiting the impact for CQC.
-Factory smooth bore nozzle: This is one of the finer features CA comes factory with. It is very similar to the aftermarket nozzle and performs to a similar standard.
Why this is important: This type of nozzle has better airflow characteristics thus being more efficient than the "cross" type nozzles.
-New type hop-up unit: The new design is better, but the functionality of the CA hop-up bucking falls very short. It is a hybrid between an M16 type and an AK type. It has a more positive control with the slider, and the not bolt in function of the M16 hop-up units.
Why this is important: The new hop-up unit design incorporates the simple slide in and out functionality of an M16 hop-up unit (easy barrel changes, hopup rubber changes, and inspection) with the consistency of the AK type slider hop-up adjustment. The bottom line is the adjustment doesn't change while shooting, unlike some of the lever type designs from the past. *The hop-up buckings, like all CA hop-up buckings, should be replaced. Guarder, Systema, or any of the top manufacturers are a solid choice and you'll see a marked improvement in consistency and adjustability.
-Ball-bearing spring guide: Another nice aftermarket feature that comes stock. In the past lower line spring guides were included. With the B&T it is a top shelf model. It should be serviceable for the length of the replica's gaming life.
Why this is important: With a bearing spring guide the advantage is two-fold. Firstly, the base of the spring guide isn't using a friction type metal washer against plastic. Over time the metal washer will wear through the plastic spring guide and break the rear off allowing the spring to bind and fail. The CA factory option utilizes a bearing "plate" and two washers sandwiching it. This removes any wear on the bottom plate of the spring guide, making it a far more serviceable option for the mechbox. Secondly, there is not binding when the spring compresses. The bearing will allow the spring to coil and uncoil without excessive pressure. With a standard spring guide (plastic/one metal washer) the friction, over time, can weaken the coils and fracture the spring causing a mechbox failure.
-Silicone low-resistance wires: Nothing like keeping the heat down. CA was one of the first to use this type of wiring from the factory. It has a softer sheathing and is more pliable than the traditional low-resistance wires from Systema. In the MP5 grip there is plenty of room to route the wires to maintain a proper motor orientation.
Why this is important: Heat. Running heavier spring rates causes more draw on the battery. Excessive heat is bad with electric components. The wires provide ample current passage without building excessive heat.
-Flat Gear Set: They work. They are a flat gear set, but are not on par with the high-line aftermarket gears. They will withstand higher energy set-ups, but a higher line gear should be used. In its stock configuration, they are an excellent choice.
Why this is important: If you are planning on upgrading your replica. Consider a hardened steel set of gears. A heavier spring needs a lower gear reduction to keep the stress off the electrical components. These gears will work in the heavier application, but they are not ideal. Keep this in mind when upgrading your replica over 1.14j. (350fps w/.2s)
-Standard CA Ported Piston head: Once again it works, but is not a refined item. It is a molded plastic and is two piece. It creates a seal, but other than that it is a bare bones option piece.
Why is this important: A ported pistonhead uniformly creates a seal with its o-ring when the piston is in its fire stroke. The seal is made by pressure building up in the cylinder as it moves toward the cylinderhead. A ported pistonhead is more efficient than an unported pistonhead for one main reason. It the o-ring is being pressured outward by the increased pressure in the cylinder, while the non-ported relies on a static friction to create the seal. The CA pistonhead is very basic and is about as low tech as it gets for this type of pistonhead, but will do until an upgraded option can be installed.
-Yellow CA Poly-carb piston: They work will with the CA gears, but are the bottom of the poly-carb "upgraded" pistons group. This will likely be the source of most mechbox failures in the CA in a stock or upgraded configuration. The piston really isn't forgiving.
Why this is important: They perform at best when unmodified. (removing a tooth for better mesh) An aftermarket polycarb-piston (not aluminum) will be a far superior choice for the replica if you elect to change to a new type of gears. The piston is the manufactered weakness in the gearbox, as it should be. A set of gears going down is far more expensive than a piston, although both are irratating.
-CA HI-Torque motor: Works fine. Looks like the same motor case as the Turbo 2000 ICS.
Why this is important: Higher torque, less heat under a load. It is a similar quality to the EG1000 motor. This motor is serviceable and will work up to a 1.49j application reliably.
Overall Internal Impression:
Stock: With a factory reinforced mechbox and all the factory pluses installed out of the box, the internals should be very reliable with the proper care in operation and maintenence.
Upgraded: It is capable of taking any of the ver.2 mechbox upgrades on the market and is a solid base to work from for the upgrade minded. Replace the piston, pistonhead, and gears for any serious upgrades. Everything else should perform better than optimal.
Features of Classic Army MP5A4 B&T: Exterior
-Metal Upper Reciever: Decent weight and flat finish.
Why this is important: Weight. It adds to the overall "real" feel of the replica. The bodies have the same weak points as the plastic recievers however these look asthetically better.
-Metal Cocking Tube and Cocking Handle: Flat finish and smooth operation
Why this is important: It creates a strong marriage between the front section of the upper reciever. There is very little flex. The metal cocking tube is more durable than the plastic.
-Sliding Ejection Port: New Design for CA.
Why this is important: This is a new feature on the CA MP5 series. In the past the ejection port was simply part of the molded upper reciever, which lost a lot of cool factor. With the sliding ejection port it allows a stealth hop-up access like most other AEG's. The past generations used a lever that was covered by the front grip. Some were cut below the grip and were a pain to adjust. This is just a better looking option, but also a more functional and custom looking option.
How it works: The cocking bolt when pulled back opens up the ejection port. It will close when the bolt handle is moved back to its neutral locked position.
-Metal Front Site, Rear Site, and Flashhider: Flat finish, solid.
Why is this important: Durability. Stronger and more realistic.
-Flashlight Forgrip (pressure pad actuated): Faithful repro. grip w/light
Why this is important: The functionality of the flashlight is of more importance than the ergonomics of the grip itself. It uses CR123 batteries and it is very bright. Not Surefire bright, but enough to get the job done when doing entry work on a building. The foregrip locks on firmly and doesnt flex like some of the aftermarket models available.
-B&T Logo: Laser Etched, very clear
Why this is important: It isn't, but it sure does look good!
-Easy field stripping and easy mechbox removal.
Why this is important: It is more ergonomic for the tech when disassembling the replica. A few simple screw removals and you can remove your barrel without opening the clamshell upper reciever. This is similar to the ICS design, but is more functional with the new hop-up design CA has gone to.
-Navy style Ambidextous Fire Selector: More lefty friendly.
Why this is important: The older SEF trigger group design was made for the right handed shooter. The Navy design is right or left/off hand shooting. There is one drawback as with all of the Navy selector switches. They rely on a single set screw to keep them together. Proper care when flipping the selector should be taken, and regular checks on the set screw to make sure it is tight. A little loc-tite (blue) should do the trick, but regular checks will be your best defense against loss.
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Overall External Impression: This is an excellent recreation of a personal favorite SMG. It should provide not only the cosmetics and feel that a geardo is looking for, but is also a solid out of the box performer for the first time buyer.
The sliding ejection port and hop-up access is the most shining feature, but that shouldn't take away from all the other aspects mentioned. The markings, logo and fire select, are crisp and clear and the fit and finish is quality.
At the Range: Having completed the technical aspects of the review it was time to move to practical.
-First stop was the chrono. I loaded some Airsplat BIO .20's and headed over to the chrono. I am impressed with the consistency. It held fairly close to the advertised 328fps (1j). The -10fps off could easily be the pistonhead seal or even the bb's.
-Prior to going live, I adjusted the hop-up and sights. The hop-up was very manageable and easily adjusted. The open-bolt option makes the adjustment very easy. The rear site requires a phillips screwdriver to make the adjustments. So, after a quick twist of the screws, I was ready for the range.
Next to the firing line:
I fired ten rounds from a standing position. The grouping was quite decent.
Once again, 10 rounds. Standing position. A mild crosswind picked up at the end of the grouping. I feel that here the accuracy was not out of sorts for a stock replica, but wasn't great either. This could easily be due to the stock barrel being 6.05mm. Still reasonably accurate, but not a tack driver at that distance by any stretch.
The Range Impression of Classic Army MP5A4 B&T:
After the target tests were complete I dumped several more mags through the replica.
-The CA MP5A4 has great handling characteristics. The Navy trigger group is a breeze to shoot offhand. Its compact design allows for the alternate shoulder pocket drop to be seamless.
The fire selector has a nice audible "snap" from SAFE, SEMI, and AUTO. I was happy with how solid the selector felt considering it uses the same set screw design.
-The flashlight in the grip is a decent starter option. As stated earlier, not a Surefire, but gets the job done.
-The magazine locks in place with a solid click, and there is little side to side "wiggle". Overall, this replica is solid CQC option
The Conclusion of Classic Army MP5A4 B&T:
The advantage of the Classic Army MP5A4 B&T is that it comes packed with factory upgrades right out of the box and doesn't give your credit card a beating. Sure, a hop-up bucking, pistonhead, and tightbore barrel would be at the top of the list for initial upgrades, other than adding a higher energy spring there isn't much to do internally.
In conclusion, if you are in the market for an Classic Army MP5A4 B&T, before making a final decision check out the B&T. This replica could easily be your next purchase.
This airsoft gun is not to be misrepresented as a real firearm or gun that is manufactured by Heckler & Koch and is merely an airsoft gun that fires 6mm pellets. The manufacturer of this airsoft gun is Classic Army.
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