The Knight's Armament Company KS-3 VAPOR is a gas-powered GBBR airsoft rifle based on the M4/AR-15 platform.
The model was developed through a collaboration between Specna Arms and Well Pro. Thanks to a license granted through EMG, the replica features official Knight's Armament Company (KAC) markings. KAC is an American manufacturer of firearms and shooting accessories.
Construction and Build Quality
The KS-3 VAPOR features a compact design, ambidextrous controls, and a 9.5-inch aluminum URX6 M-LOK handguard. The M-LOK system allows additional accessories to be mounted, including foregrips, flashlights, and laser modules. The top 22 mm RIS rail allows the installation of optical sights and red dot sights.
The replica features a Gas Blowback (GBB) system that cycles the bolt assembly with every shot, producing noticeable recoil and enhancing realism. After the last BB is fired, the bolt remains locked to the rear, replicating the operation of a real firearm.
Aluminum components:
Receiver
Muzzle device
9.5-inch URX6 M-LOK handguard
Buffer tube
Outer barrel
Charging handle
Nylon components:
Ergonomic pistol grip
Adjustable stock with rubber buttpad
Steel components:
Iron sights (partially)
QD mount on the stock
Controls
Pins and screws
Internal Construction
The replica features an aluminum bolt carrier group (BCG), a polymer buffer, and steel trigger mechanism components.
Internal components:
Aluminum BCG
Polymer buffer
Steel hammer
Steel hammer sear
Steel bolt-catch plate
NPAS System – Muzzle Energy Adjustment
An NPAS system is integrated into the BCG, allowing the gas flow to be adjusted and, consequently, the muzzle energy (J) and muzzle velocity (FPS).
Adjustment is carried out using an Allen key, allowing the firing parameters to be adapted to the requirements of the game.
TDC Hop-Up System
The replica features a TDC (Top Dead Center) Hop-Up adjustment system, allowing precise adjustment of the pressure applied to the Hop-Up bucking without disassembling the replica.
The adjustment opening is located on the top RIS rail. This allows the user to adjust the Hop-Up with a suitable key, even immediately before a game.
Functionality and Operation
The replica is equipped with ambidextrous controls, making it easier to operate for both right- and left-handed users.
Functional components and features:
Ambidextrous fire selector
Ambidextrous magazine release
Ambidextrous, functional bolt catch
Ambidextrous charging handle
QD attachment point for a tactical sling
The compact configuration of the KS-3 makes the replica easier to maneuver during CQB games, particularly in confined spaces and corridors.
Product Features
Knight's Armament Company KS-3 VAPOR gas-powered GBBR airsoft rifle
Licensed Knight's Armament Company (KAC) markings
9.5-inch URX6 M-LOK handguard
Top 22 mm RIS rail
Gas Blowback system with noticeable recoil
NPAS system for muzzle energy and velocity adjustment
TDC Hop-Up adjustment accessible from the top RIS rail
Ambidextrous controls
Functional bolt catch
Compact design suitable for CQB games
Package Contents
Included in the Package
GBBR replica
Green Gas magazine with a capacity of 30 BBs
Cleaning rod
Speedloader
Allen keys
| Length minimal [mm] | 69,5 cm |
| Overall length | 78 cm |
| Specna Arms Line | VAPOR |
Muzzle velocity [FPS]![]() It is the spped of bb, while its leaving the innerbarrel of replica. This speed is measured in FPS (Feet Per Second). 1 FPS = 0,3 m/s 1 J = 99 m/s 1 J = 326,7 FPS | 320 FPS |
| Fire mode | Semi-auto Full-auto |
| Inner barrel length [mm]. | 250 mm |
| Weight [g] | 2635 |
| Magazine type | real-cap |
| Magazine capacity [pcs.] | 30 BBs |
Hop-Up![]() Hop-Up system is used for overclocking bb during the shot (putting it in rotation), through which, it extends its flight path. Acting laws of physics make that bb lift up, while the gravitational force take it down. Appropriate adjustment of Hop-Up, will compensate for these two factors, which result in long and straight flight for longer distance and be greater focus shot (to improve accuracy). | Yes |
Entity responsible for this product in the EU | GF CORP SP. Z O.O. SP. K.More
Producer
GF CORP SP. Z O.O. SP. K. Address : Jana Długosza 42-46Postal code : 51-162City : WrocławCountry : PolandE-mail : info@gfcorp.pl
Responsible entity
GF CORP SP. Z O.O. SP. K. Address : Jana Długosza 42-46Postal code : 51-162City : WrocławCountry : PolandPhone number : +48713210378E-mail : info@gfcorp.plDescription : ⠀ |


