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Heckler & Koch Full Metal HK45 Airsoft GBB Pistol by KWA (Package: Gun Only)

ID: 39204 (GP-KWA-HK45)
Heckler & Koch Full Metal HK45 Airsoft GBB Pistol by KWA (Package: Gun Only)
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Elite Force / UmarexKWA


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  • Fully licensed H&K Trademarks and Serial Plate
  • Full Metal Slide and Polymer Frame
  • KWA's renowned NS2 Gas System
  • Orange Tip features 16mm Positive threads for USP-style mock silencers
  • On-frame safety for functioning decocking mechanism
  • Ambidextrous slide catch and magazine release
  • Bright white-dot shooter's sights
  • Integrated accessory rail perfect for a tactical flashlight or laser

FPS Range: 340-350

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.

About Elite Force / Umarex

Since 1972 Umarex has created a world of adventure for sport shooters, recreational shooters and hunters. Its high-performance, high quality models permit training under highly realistic conditions.

About KWA

Established in 1988, KWA has been the leadingdesigner and manufacturer of airsoft replica weapons for law enforcement and military training. Its reputation for quality, performance, and reliability makes KWA a recognized leader in professional airsoft products.In a time when airsoft development is focused on external replications and logos, KWA has been advancing airsoft technologies with the introduction of the NS2 Gas Blowback System and the 2GX Mechbox. Both product advancements increase the overall performance and reliability beyond all conventional standards of the industry. These products represent KWAs commitment to excellence and passion for engineering products that simply outperform.KWAs state-of-the-art manufacturing facility is located in Taiwan with an independent sales and distribution operation in the United States that services the Americas and all European Regions.

17 Customer Reviews

(Write a review)

by Quentin L. on 09/12/2021
"I have owned this gun for over a year and have gone to upwards of 20 games with it as my duty sidearm and I have absolutely no qualms whatsoever.
I bought the gun last April as I needed a new sidearm, I bought this one cause I'm an HK fanboy but that's aside from the point. For the first 5 games, I ran the gun completely stock and had absolutely no issues. After that, I installed a RA Tech steel barrel and sacrificed a little bit of gas efficiency; even then I have never had the gun run out of gas even after multiple hours of storing it.
The gun has run in both hot and cold conditions, as well as dry and wet and I still have yet to run into a malfunction. In terms of how much physical abuse this thing can take, I have accidentally dropped it at least once every game onto concrete and I have deliberately yeeted it into compacted soil; again without any malfunctions unless you consider slightly gritty mag insertions to be one.
The manual of arms is very rudimentary and obvious so if you eat Subway without questioning the ingredients as I do then you shouldn't have a hard time handling this thing. The trigger is very crisp and has a decent trigger pull, the safety moves into its positions with very positive clicks, and the slide is very smooth and satisfying to rack.
If there were anything I wish the gun had it would be either real steel compatibility (optic mounts, and iron sights) or just a larger aftermarket. Granted this isn't a Glock so you shouldn't really expect a big aftermarket in the first place.
Overall, I think the gun is incredibly robust and it feels great, I have friends and family who own other sidearms and despite their large aftermarket and community support, they always run into problems.
by chi w. on 02/16/2020
"bought this gun around thank giving time and had a great deal on it
my first ever GBB pistol, and the only comparison i have is the KWA ATP(glock 18 replica)
personal i hate the trigger guard on any glocks so glocks are not in my list at all
looking at the reviews, i chose this one nearly no one else using
was trying to get the march compensator one but it was out of stock during that period:(

using .23 BBs on both pistols

weight : relatively heavy Much lighter

Rate of fire: moderate Fast
due to heavier and
longer trigger pull

recoil: strong Moderate

feels : very robust quite plastic

sound: BANG BANG BANG bang.......
just dont try to stealth with it

Accuracy : 85% accurate 90%accurate under 50 feet
might go heavier BBs(.25/.28) definitely curving over 50 feet
for better result, rounds feel
a bit curving over 50 feet

spare parts /
attachments: hard to find any... should be a F ton out there?...

Mags: heavy lighter

so over all its a very promising GBB imo
N2 gas system can guarantee 2-3 mags 1 fill depends on temperature(was doing indoor around 45 degrees F and it might lose pressure after like 20 quick shots, need to warm it back up)

the barrel is full plastic and the orange tip is PART of it, u cannot screw off, only way is either changing the barrel or simply spray paint it....
by Jonathan C. on 03/10/2019
"Fantastic gun. Very very accurate and incredible range for a pistol. It puts my TM 1911 to shame. Huge gas capacity 3+mags per fill.
This gun is a little temperature sensitive and is prone to icing so it doesn’t work well as a primary but is a fantastic secondary weapon. The BBs fly right where you point the gun. Easy to acquire and hit your targets even at a distance.

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