Knight's Armament KS-1 12,8" GBB Replica - Black [EMG]

The KS-1 GBBR airsoft rifle from WELL PRO, manufactured under license from Knight's Armament, is based on the AR15 platform. The model features a metal construction, a gas blowback system with a metal bolt carrier assembly, and two GBB magazines included in the package. The 12.8-inch M-LOK URX handguard, adjustable SF-style stock, and ambidextrous controls support convenient handling during milsim events and dynamic outdoor games.

WELL PRO KS-1 GBBR airsoft rifle licensed by Knight's Armament

The KS-1 is a GBBR airsoft rifle based on the AR15 platform. Its construction is designed for users looking for realistic gas system operation and convenient right- or left-handed handling.

The airsoft rifle is made of metal, with CNC machining used during the manufacturing process. The gas blowback system cycles the bolt carrier assembly after every shot, providing a noticeable mechanical response and supporting realistic handling.

12.8-inch URX handguard and M-LOK system

The model features a 12.8-inch URX handguard. M-LOK slots positioned on several surfaces allow additional equipment, such as a flashlight or foregrip, to be mounted according to the user's preferred rifle configuration.

A full-length RIS mounting rail runs along the upper receiver and handguard. It allows the airsoft rifle to be equipped with a red dot sight or riflescope.

NPAS system and hop-up adjustment

The metal bolt carrier assembly moves with every shot, while its weight contributes to the noticeable operation of the gas blowback system when the trigger is pulled.

The airsoft rifle is equipped with an NPAS system, which allows the power output to be adjusted according to temperature, the weight of the BBs, and the limits applied during a game. Access to the hop-up adjustment is located on top of the upper receiver, within the mounting rail, allowing the BB trajectory to be corrected without disassembling the airsoft rifle.

Steel internal components and trigger mechanism

The manufacturer has used proprietary reinforced steel components inside the airsoft rifle, including parts of the trigger mechanism. Their construction supports the durability of the system during regular and intensive use.

The trigger mechanism features short travel, a fast reset, and a clearly noticeable break point. These characteristics facilitate rapid follow-up shots.

The inner barrel has been matched to the KS-1 configuration and supports shot-to-shot consistency and accuracy. The airsoft rifle also uses a proprietary magazine design inspired by VFC and MWS AR15/M4 systems, developed to support efficient gas delivery and correct GBB system operation.

Ambidextrous controls and adjustable stock

The KS-1 features an ambidextrous charging handle, magazine release, fire selector, and bolt catch. Access to the controls from both sides allows right- and left-handed users to operate the airsoft rifle conveniently without changing their primary grip.

The adjustable SF-style stock allows its length to be adapted to the user's preferences and tactical gear configuration. Fully collapsing the stock facilitates transport, storage, and handling in confined spaces.

Package includes

• KS-1 GBBR airsoft rifle
• 2 GBB magazines

Recommended accessories

• Light Performance Blue Gas [Nimrod]
• Standard Performance Green Gas 500ml [Nimrod]
• Professional Performance Red Gas 500ml [Nimrod]
• STANAG 30-round Magazine for WE13-3A / KS-1, KS-3 GBBR Replicas [Well Pro]

Manufacturer

WELL PRO offers electric, gas-powered, and spring-powered airsoft guns, including designs based on the AR, AK, and PP-19/PPK-20 platforms, as well as multi-barrel models from the WE23 series. The brand's product range includes AEG airsoft guns with electronic systems, GBBR models, and licensed Knight's Armament designs such as the KS-1 and KS-3.
Each replica undergoes a zero-stage inspection! It is checked and test-fired using an XCORTECH X3200 chronograph.