The Arcturus MS Block 1 airsoft assault rifle is an electric AEG replica based on the M4 platform.
The model belongs to the Duty Edition (DE™) series, distinguished by:
Compact MOSFET protected by a potting compound (POTTED)
Enhanced microswitch contact protection
Steel cut-off lever manufactured using MIM technology
Support for neodymium magnet motors
Compatibility with Li-Po 3S (11.1 V) batteries
Increased reliability in demanding conditions
Construction designed for MILSIM games
External Construction
The replica is made of aluminum, nylon, and steel. The aluminum receiver is combined with a handguard equipped with RIS rails. The handguard is CNC-machined from aluminum and features a hard-anodized finish.
Aluminum components:
Receiver
RIS handguard
Outer barrel
Muzzle device
Ambidextrous charging handle
Buffer tube
Nylon components:
Pistol grip
Adjustable stock
Handguard rail covers
Steel components:
Magazine with an adjustable capacity of 30/130 BBs
Controls: magazine catch, bolt catch, and fire selector (steel component on the left side)
Tactical sling attachment point
Screws and pins
Dummy forward assist
The RIS handguard allows additional accessories to be mounted, such as vertical grips, flashlights, and laser aiming devices.
The adjustable stock and versatile dimensions allow the replica to be adapted to the user. The design is suitable for both CQB games and operations in open terrain.
Internal Construction
The replica features a V2 Duty Enhanced gearbox with a quick-change spring system, a microswitch-based trigger system, and a MOSFET protected by a potting compound.
Internal components:
Rotary hop-up chamber made of reinforced polymer
Precision steel inner barrel with a diameter of 6.02 mm and a length of 380 mm, featuring QPQ surface treatment
V2 gearbox with a quick-change spring system
CNC gear set with a 13:1 gear ratio
Piston with QPQ-treated steel teeth
CNC-machined stainless steel cylinder
POM nozzle with an O-ring
24K neodymium magnet motor
Magazine with Adjustable Capacity
The replica comes with a steel EMM magazine featuring a QPQ surface treatment.
The magazine allows the capacity to be switched between 30 and 130 BBs. The 30-BB mode enables more realistic MILSIM gameplay, while the 130-BB capacity is suitable for standard airsoft games.
Product Features
M4 AEG platform
Duty Edition (DE™) series
Aluminum receiver and RIS handguard
MOSFET protected by a potting compound (POTTED)
Enhanced microswitch contact protection
Steel MIM cut-off lever
V2 gearbox with a quick-change spring system
Steel CNC gears with a 13:1 ratio
QPQ-treated 6.02 mm steel inner barrel
Rotary hop-up chamber
24K neodymium magnet motor
Compatible with 7.4 V and 11.1 V Li-Po batteries
Steel EMM magazine with an adjustable capacity of 30/130 BBs
Adjustable stock
Ambidextrous charging handle and fire selector
Package Contents
Arcturus M4A1 MS Block 1 replica
30/130 BB magazine
Cleaning rod
Mini Tamiya to T-Deans adapter
Iron sights
Allen keys
Assembly wrench
User manual
Vertical grip
Battery and charger are not included.
| Overall length | 870 mm |
| Length minimal [mm] | 790 |
| Manufacturer model code | AT-ARM-01-CB-DE |
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 | 390 FPS |
| Gearbox version Indications v2, v3, v6 does not mean the level of advance, but only shape of gearbox skeleton which was used and selected by the manufacturer depending on the capabilities of the body of the replica. For example, a models of the M4/M16 family, MP5, have a v2 gearbox, while the AK family have gearbox v3. | Gearbox v2 |
| Fire mode | Semi-auto Full-auto |
| Inner barrel length [mm]. | 380 |
| Weight [g] | 2820 |
| Magazine type | mid-cap |
| Magazine capacity [pcs.] | 30/130 |
Entity responsible for this product in the EU | GF CORP SP. Z O.O. SP. K.More Address : Jana Długosza 42-46Postal code : 51-162City : WrocławCountry : PolandPhone number : +48713210378E-mail : info@gfcorp.plDescription : ⠀ |