Heckler & Koch Full Metal HK45 Airsoft GBB Pistol by KWA

Elite Force / Umarex39204
4.8 stars, based on 8 reviews


Model: GP-KWA-HK45
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8 Customer Reviews

by Roman D. on 12/24/2014
"This is an amazing pistol. It is full metal except for the outer barrel, you can power stroke it (pull the slide back while the slide is locked to load a bb into the chamber), it holds alot of bbs in the mag, very efficient(i can go through over 2 mag fils until the gas runs out, and i love the functioning decocker and saftey. All in all this is the best pistol i own and it has alot of kick, as well as the Heckler And Koch and Gambel trade marks all over the gun, even internally it has hk trades. Very accurate and easy to adjust the hop up. For the price its an amazing gun, in my opinion its the best gbb pistol out there. The only downside is that the slide can sometimes get a little bit stuck, so make sure to fully disasemble the gun which is very easy, just line up the square with the pin and slide the slide off, then pull the recoil spring out and the barrel, and you want to clean every inch of the gun with a q tip until there is no more black residude from the machines on your q tip, then oil everything that moves up with 100% silicone oil. also the decocker can be a little fidgety but not very often if at all. lastly, the only upgrade i did to this gun is replacing the barrel with a metal one from RA-tech.
by Stephan H. on 12/07/2014
"KWA makes excellent pistols, this is no exception.

I have had very few functional issues with this pistol. Gas efficiency is excellent, even in cold (40 degrees and below) the gun functions fine. Accuracy is great out of the box. I use .23g BBs with propane, and the effective range is comparable to some lower end AEGs. Despite the look, the gun feels great in the hand. While it is not recommended, I temporarily removed the orange tip (I can still pop it in the barrel, which I do when I transport and store it). It looks way better, and it fits in a Kydex holster for a real steel HK45. On the subject of looks, I think the finger rest extension on the magazine looks stupid because its a full frame pistol, but that's how the real gun is, so I cant really complain much.


Like other polymer frame pistols, the rear of the frame, between the trigger and the slide, is a weak point. The outer plastic tends to break off with heavy use. This was the same for their USPs. Not a big deal, since it doesnt effect function, and it can just be glued back on.

Magazines. The magazine that came with the gun (the only one I currently have) had some loading issues. The follower tends to get jammed, preventing the BBs from feeding up the magazine. This has been an issue when I pull my sidearm to get a close engagement kill, and it fails to load. I've tried cleaning the inside of the magazine, where the follower travels and the BBs sit. I dont want to file down the follower in fear that it may lose the ability to lock at the bottom. I hope this issue goes away with use.

Double action/ decocking is funky. Again, like a lot of airsoft pistols, decocking and double action are a little screwy. It is fine to shoot, decock, and use in double action. But, if you remove the magazine after decocking (or before), it needs to be re-cocked when the magazine is inserted. Not a big deal, just need to keep the magazine in the gun if you are going to carry it in condition 2 (round in the chamber, hammer down).

Front sight is also prone to sliding out, I glued mine in before I lost it.

The Pros:

The gun comes with a split style bucking, which is why KWA's pistols are so accurate out of the box. (Con: the HK45 hop-ups are semi-proprietary, there are no aftermarket companies making rubbers for them yet)

Super efficient. Close to 3 magazines of BBs on one fill (on a nice warm day, shooting at a calm pace). Also 28 rd mags.

Trades are quite nice. Laser engraved, so eventually they might wear off, but they look great.

Snappy blowback.

by Eugene Y. on 08/01/2014
"I'm a big Heckler&Koch fan, I have to say this is probably one of the best Hk airsoft replica. I carry this pistol as my sidearm to couple big games and countless pick-up games, so now I feel like It's time for me to do a overall review.

1. comfortable grip
2. mag holds 28+1 rounds. And also one gas fill will give you about 46-52 rounds.
4.Full HK trademarks
5.Can fit in P30 holsters, which is great for me.

1. It has a slide stop, not a slide release. So if you use it as a slide release it will damage the slide catch.
2.Mags are kinda expensive.
3.hop-up adjustment can be difficult on the field.
4.plastic outer barrel.
Heckler & Koch Full Metal HK45 Airsoft GBB Pistol by KWA
Heckler & Koch Full Metal HK45 Airsoft GBB Pistol by KWA

  • Fully licensed H&K Trademarks and Serial Plate
  • Full Metal Slide and Polymer Frame
  • KWA's renowned NS2 Gas System
  • Orage Tip features 16mm Negative threads for USP-style mock silencers
  • On-frame safety for functioning decocking mechanism
  • Ambidextrous slide catch and magazine release
  • Ergonomic Grip great for right or left handed shooters
  • Bright white-dot shooter's sights
  • Integrated accessory rail perfect for a tactical flashlight or laser
  • Front and rear slide serrations
  • Realistic Blowback Action

  • Dimensions: 210mm x 152mm
    Muzzle Velocity: 340~350 FPS (Measured w/ 0.20g BBs and Green Gas)
    Magazine: 28+1 rounds
    Gas Type: Green Gas
    Firing Mode: Semi Automatic, Safety
    System: Gas Blowback
    Hopup: Yes, Adjustable
    Package Includes: Gun, Magazine, and Manual

    Manufacturer: KWA

    *GBB 101: It is a good idea to let your magazine return to regular temperature before using it again for optimized performance. We recommend spare magazines for best performance on all GBB's.

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