KM4A1 - ArniesAirsoft - Review Archive

Author

CSC_Maverick

Registered: January 2008
Location: Pittsburgh,PA(USA)
Posts: 182

Review Date: 11/4/08

Would you recommend the product? Yes | Price you paid?: None indicated | Rating: 10

Positive aspects of the product (pros):	Super Strengthened Internals, very durable, Li-Po ready, INSANE Rof with Li-po, Stock M120 spring, You dont really need to upgrade this gun. At all., High quality Construction, One of the, if not THE, best gun for the price range
Cons:	I personally think m4s batteries are a pain in the !$@ to get in, but yeah thats me.

The KWA m4 is one of the newer AEGs out there.

LOOKS: Very realistic M4. Everything that should be metal is metal, and what should be plastic plastic. Not much different from CA m4s in terms of layout. The bolt actually opens up the hop-up chamber though, unlike CA's. Also, KWA's logo is where the Armalite logo is on CAs. The carbine stock is 6 position.

SPECS: Here is some info and Specs from evike.com

"The KWA KM4A1 Carbine is the first production AEG engineered specifically
for the unparalleled performance of todays advanced battery technology 
Lithium Polymer (LiPo). LiPo batteries provide higher capacity and superior
performance surpassing the more common Nickel Metal Hydride (NiMh)
batteries. However, this powerful battery requires the highest quality of internal
components. To handle the extra power of LiPo batteries, the KM4A1 is
equipped with a reinforced metal gearbox utilizing KWAs exclusive 8 and 9 mm
ball bearing bushing combination and case hardened, precision metal gear sets.
Heavy duty springs and high-torque motors are matched for optimum results.
High-grade metal alloy are used for the production of the upper and lower receivers." Notes I am adding, this gun boasts a 8mm gearbox, reinforced gears and a stock M120 spring as well.

"Overall Length = 33.75" (30.5" when stock is fully retracted)
Inner Barrel Length = 15.5"
Inner Barrel Diameter = 6.05mm +/- .03mm
Hop-Up: Adjustable
Magazine Capacity = 350 Rounds
Caliber = 6mm BB
Weight= 6.5 pounds"

To unlock the full potential of this weapon, I purchased a Li-Po battery:

http://i156.photobucket.com/albums/t6/ViperXtreme123/LI-POBATTERY.jpg

Its 11.1V/1800 mah, and its slightly smaller than a normal small type battery.
It comes with a smart charger, so you dont have to worry about charge time.
NOTE: YOU CAN ONLY USE THE CHARGER THAT COMES WITH THE Li-Po BATTERY!!!! THIS IS EXTREMELY IMPORTANT!!!! Do NOT overdo it with this battery. Yes it is Li-Po capable, but if you lay on the full auto for a long time, you will start frying wires, or worse.

Firing: This is why this gun is the next generation of AEG.
Using a Madbull Chrono, we came up with these results:
~390-400 fps range
1034rpm. This is slightly less than evike's claim of 20+ rpm. The battery might of not have been fully charged either.

When I first got it, I was target firing in the back. All I have to say is wow. The .20 bbs were not very accurate, but the .25 bbs I used shot quite accurately. The hop-up adjusted to where I wanted right away, making the bbs go slightly up then back down. Nailing a tree ~150ft no problem with airtime to spare.
After using this gun in several matches, it has not dissapointed. It has performed superbly. Only problem Ive had is one bb jam. Accurate, powerful, and most importantly, reliable.

Price: $300. Li-Po $75= $375

NOTE: I want to the point out the difference between this m4 and the kwa m4 cqb, besides the shorter barrel. The CQB shoots 350fps(m110 spring) instead of 400(m120 spring), but has a higher ROF.

CONCLUSION: Most amazing gun I've ever gotten my hands on. Period. Criticize me if you wish, but I think this gun blows Classic Army out of the water. You would need to pay much more $$$ for other high ends in the price range to match this gun. And, the only problem I've ever had is 1 bb jam. The weapon, as long as you got the wallet and utilize its Li-Po readiness, is nearly flawless.

10/10. I would give it a 20/10 if I could.
Dont believe me? Get one for yourself. Any questions post up or pm.