In this Table Top Review, we’re taking a detailed look at the KJ Works KP-19S CO2 Blowback Airsoft Pistol. I’ve already reviewed the standard KP-19 in the past, and while the two pistols share a lot in common, there are some important differences between the KP-19 and the KP-19S that are worth covering.

I’m not entirely sure what the “S” officially stands for, possibly Sport—but interestingly, I’d actually argue that the non-S KP-19 is the more competition-oriented version, especially for IPSC-style Airsoft shooting. That said, the KP-19S still offers excellent performance, strong build quality, and a feature-rich design.

As always, this is a Table Top Review only. A full Shooting / Field Test Video will follow later.

This pistol is currently available in our Canada Replica Airguns store, and if a similar model is available in the US store, links will be provided in the video description.

Specifications:

Manufacturer: KJ Works
Made In: Taiwan
Power Source: 12g CO2
Ammunition: 6mm Airsoft BBs
Action: Semi-auto, full blowback
Trigger: Single-action, skeletonized, adjustable (1911-style)
Magazine: Full-size dropout metal magazine, 25-round capacity
Weight: 1.96 lbs (890 g)
Overall Length: 9.84 inches (250 mm)
Inner Barrel Length: 4.25 inches (108 mm)
Claimed Velocity: 366+ FPS
Hop-Up: Adjustable
Rail: Under-barrel Picatinny rail
Sights: Fiber-optic front and rear
Safety: Ambidextrous
Magazine Release: Reversible
Threaded Barrel: Inner and outer threading
Field Strippable: Yes (1911-style takedown)

The pistol includes a removable inner barrel extension, which may be required to reach the higher advertised FPS—something we’ll confirm in the upcoming field test.

In the Box:

KP-19S CO2 Blowback Airsoft Pistol
Full-size metal CO2 magazine
Inner barrel extension
Allen keys
Small bag of Airsoft BBs
Instruction manual (Usually!)

The pistol comes packaged in a basic cardboard box, but all essential accessories are included.

KP-19 vs KP-19S – What’s Different?

The KP-19S shares most of its core design with the standard KP-19:

Same frame, grip, slide profile, trigger guard
Same skeletonized trigger and hammer
Same magazine compatibility

Key Differences

KP-19 (Non-S):
- Flared magwell
- Compensator
- Removable rear plate for mounting a red dot
- More competition-oriented configuration
KP-19S:
- No flared magwell (cleaner, more streamlined look)
- Fixed rear sight
- Two-tone appearance

Performance between the two should be nearly identical, and if you’ve already watched the field test for the standard KP-19, expect similar results from the S version.

Walk-Around & Handling:

The KP-19S is a large pistol with a fairly wide grip. Shooters with smaller hands may find it bulky, but balance and weight distribution are excellent. At just under two pounds, it feels solid without being overly heavy.

Notable features include:

Slide cutouts on the top and sides
CNC-style gold/brass-colored fluted barrel visible through the slide
Fiber-optic sights that are extremely easy to pick up
Ambidextrous safety
Reversible magazine release
Dual threaded barrel system (inner and outer threads)

The full blowback action is strong, crisp, and satisfying, with excellent slide movement and reset.

Field Strip:

Field stripping follows a classic 1911 takedown:

Align the slide notch
Push out the takedown pin
Remove the slide assembly

Once opened, you gain easy access to:

Inner barrel
Recoil spring
Hop-up adjustment wheel

Reassembly is quick and straightforward, making cleaning and maintenance easy.

Pros:

High metal content with excellent weight and balance
Strong, realistic full blowback action
Excellent fit and finish typical of KJ Works pistols
High-capacity 25-round metal magazine
CO2 or gas compatibility (with appropriate magazines)
Dual threaded barrel for accessories and extensions
Bright fiber-optic sights (easy to acquire on any background)
Short, light, adjustable 1911-style trigger
Ambidextrous safety and reversible mag release
Easy field stripping and hop-up access

Cons:

Grip is wide and may not suit shooters with smaller hands
Higher price point compared to similar KWC 1911 models
Rear sight is not adjustable and does not accept a red-dot plate
- Optics would need to be rail-mounted from underneath

Final Thoughts:

The KJ Works KP-19S is a high-quality, full-featured CO2 blowback Airsoft pistol with excellent build quality, strong recoil, and competition-inspired styling. While it lacks some of the modular competition features of the KP-19 non-s version, it offers a cleaner, streamlined look and the same reliable performance.

If you’re looking for a quality CO2 Airsoft pistol with a fantastic trigger, solid blowback, and premium construction, the KP-19S is a strong contender.

A full shooting and field test video will be coming soon.

Where to Buy:

🇨🇦 Canada:
https://www.replicaairguns.ca/kp-19s-hi-capa-gbb-airsoft-pistol

🇺🇸 United States:
https://www.replicaairguns.us
(A similar model may be linked if the KP-19S is not currently available)