ARCTURUS AT-ST01 LWT AR-15 CQB Sport

ARCTURUS
Code:
£169.99
  • 6.03mm tightbore inner barrel
  • Super lightweight polymer build
  • Full-length top RIS rail

Perfect for CQB combat and manoeuvrability, the Arcturus AT-ST01 sports an ultra-light full polymer build complete with a slimline 10-inch hybrid M-LOK and Picatinny handguard, that offers you the best of both worlds, ready for any type of attachment you can throw at it.

The rifle also features a full length monolithic top rail and sling plate in addition to slimline low-profile stock, which further keeps you agile on your feet in tight spaces. This AEG has everything you'd hope for in a modern AR, especially in a fast-paced CQB environment.

Full description

Description

The ARCTURUS AT-ST01 LWT AR-15 CQB Sport is a variant of one of the most popular current real-world M4/AR-15 platforms in the US, used in countless skirmishes worldwide. It packs some highly desirable external parts with an emphasis on speed and agility in a cut down form factor, while still retaining a traditional AR build that can be used in both CQB and outdoor skirmishes.

A key feature of this rifle is the ultra-lightweight polymer build, making this an absolute beast in those tight CQB environments, allowing you to zip around the skirmish field as fast as possible, while still wielding a gun with an AR form factor. Of course, another advantage of this weight is that your arms and shoulders won't be completely drained at the end of the day!

Starting at the front of the rifle, we have the birdcage-style flash hider, which is held in place with a grub screw. The flash hider is attached to the outer barrel via the 14mm CCW thread, which can be removed if you ever feel like changing things up and equipping your own favourite style of the flash hider, suppressor or tracer unit. But you may not even need that option, as the included flash hider is a classic design, with a modern, sleek aesthetic that pairs perfectly with the M-LOK rail system.

On the subject of the M-LOK rail system, we can see that the handguard sports exactly that, which not only gives you ample room for attachments and customisation but also gives you a clear view of the barrel and mock gas tube and gas block within. The M-LOK system allows you to attach a whole host of tactical devices anywhere at 45 and 90-degree angles along the handguard, allowing for a superior level of customisation for devices such as torches, lasers and foregrips. This handguard is unique in that the very front sports a quad 2.5-inch Picatinny rail, meaning that you have the best of both worlds - M-LOK and Picatinny, so no attachments are off the table. Another key feature of this particular M4 model is that the handguard features a slim-line low-profile design, meaning that the lower half is shorter than other M4 counterparts. This allows the handguard to be lighter and more manoeuvrable, to keep you more agile in combat, as well as reduce the overall weight of the rifle, making it even quicker to operate.

The pistol grip is somewhat oversized, in comparison to the rest of the slimline build, however, this aids in grip and features a number of preferable ergonomic touches. The front and back straps, much like the magwell grip sport a ridged texture for a superior grip. Likewise, the sides of the grip feature a stippled texture, so this rifle is an absolute dream to grip, with or without gloves. The motor is housed within the grip and is accessed by turning the steel screw on the underside of the grip.

Behind the receiver, we are treated to an ambidextrous sling plate which offers two sling points on the left side and one on the right. The sling plate is ideal for single-point slings, but can also be paired with a front sling mount if you prefer a two-point sling setup. Being constructed from steel allows the sling plate to take the weight of the rifle easily, and provides confidence that the plate will never fail and dump your prized rifle into the dirt.

In keeping with the slimline nature of the stock follows suit in that it is narrower, allowing it to be lighter and handle more easily in close skirmish situations such as around corners. Being a rear-wired gun, the battery compartment is located at the very rear of the stock, within the rubberised butt plate. To access this compartment, simply rotate the dial counter-clockwise and pull out the butt plate. This particular stock's plate is attached at the bottom, so there are no worries about accessing the battery compartment even in the heat of battle as the butt plate will stay securely fastened. This gun has a crane stock and as such fits a crane stock nunchuck battery with each cell slotting in either side of the stock. The rifle is fitted with a DEANS connector and as such we would recommend batteries up to 13cm long such as the NUPROL 7.4v 2200mAh LiPo Crane Stock Battery or similar.

Arcturus are known for their quality and robust internals and the AT-ST01 is no exception! The internals of the rifle is equipped with a rock-solid feature set with some well-chosen upgrade parts with nothing which is overly complex to keep things simple, making it easy to master. The gearbox is a version 2 reinforced type with a quick change spring guide mounted on ball bearings for reduced rotational stress, and the piston head is also fitted with ball bearings, resulting in a long-lasting and low-stress gearbox setup.

The nozzle is Teflon sealed for superb air seal qualities, and the steel gearset runs on 8mm steel bushings for a smooth gearbox sound and unlaboured functionality. The wiring is heavy gauge low resistance wiring, making for a setup which is far more efficient in both air seal and power use than most of its rivals. This superb feature set is enhanced by the microswitch trigger, which provides a snappy trigger response in semi-auto, and genuinely feels like it must have a MOSFET inside. While this rifle doesn't have a MOSFET, ARCTURUS has clearly proved you don't need a MOSFET for a rapid response if your gearbox is well built!

So if you are looking for a sure-fire way to dominate in CQB, the AT-ST01 fits the bill, without having to completely cut down to SMG or ARP-9 and still retains its glorious AR-15 form factor. The rifle is as light as can be thanks to its full polymer design and the low profile slimline stock and handguard reduces the weight even further so you can stay light on your feet and manoeuvrable in the heat of battle.

The ultra slimline stock and low profile handguard keep you agile and manoeuvrable on the field for those of you that like quick, intense gameplay. With a beautiful anodised handguard and modern aesthetics, this rifle is a fantastic choice at this price point, and being an M4 platform, with both a full-length top rail and M-LOK handguard, is easily customised to boot!

Features

  • 6.03mm Steel tightbore inner barrel
  • Rotary adjustable HOP-up unit
  • 10-inch M-LOK handguard - Plenty of space for modern shooting styles!
  • 14mm CCW male threaded outer barrel - Ready for a tracer or suppressor
  • 20mm Picatinny railed receiver - Seamless integration with the handguard rail
  • M-LOK rail system with quad picatinny front end
  • Ambidextrous charging handle - Modern looks, ambi HOP-up access
  • Extended bolt release - True to the real-world rifle
  • Ergonomic pistol grip with ridged backstrap - Comfortable for most hand sizes
  • Ambidextrous steel sling plate - Ready for single-point slings
  • QD sling points on rear of stock
  • 6 Position M4/AR-15 buffer tube - Compatible with aftermarket M4/AR-15 AEG stocks
  • Mil-spec curved trigger - Perfect for military-style loadouts
  • Bearing spring guide and piston head - Reduced rotational force, less friction
  • Rotary adjustable HOP-up unit - Fine increments of adjustment, holds setting well
  • Teflon sealed air nozzle - Great compression/air seal qualities
  • Low resistance wiring - Great electrical efficiency
  • 8mm Steel bushings - Smooth running gearbox
  • Compatible with M4/AR-15 AEG magazines
  • Deans connector with included Mini-Tamiya adaptor

Package Includes

  • ARCTURUS AT-ST01 LWT AR-15 CQB Sport
  • 130rnd mid-capacity magazine
  • Flip-up ironsights
  • Deans to Mini-Tamiya adaptor
  • Instruction manual
  • ARCTURUS stickers

Specification

General

Weapon Construction External
Weapon Type
Assault Rifle
Over 18 Only Icon
Over 18
Yes
Icon UKARA - United Kingdom Airsoft Retailer Association
Defence / UKARA Required
Yes, No,
FPS Icon
FPS (Feet Per Second), using 0.20g BB
Approx. 330fps ± 10%, using 0.20g BB
Site Legal Icon
Site Legal, using 0.20g BB
Yes
Screwdriver Icon
Pre-Built
Yes
Package
Included Items
  • Ironsight Set
  • Stickers
  • Deans to Mini-Tamiya Connector
Skill Level Icon
User Skill Level
Starter

Weight and Dimension

Weight KG Icon
Weight (KG)
Approx. 2kg
Weapon Length Collapsed
Length (Collapsed)
73cm
Weapon Length Extended
Length (Extended)
81cm

Construction

Colour Wheel Greyscale
Primary Colour
Black, Grey,
Construction Icon
Construction
Polymer
Weapon Construction External
External Construction
Polymer
Gearbox Icon
Internal Construction
Polymer
Alloy
Aluminium
Steel

Weapon Specific

Power Source Icon
Powered By
Electric
Blowback Icon
Blowback
None
Weapon Platform
AR, M4 / AR-15 / M16, Assault Rifle,
Magazine Style Icon
Magazine Style
STANAG, Long Gun Magazine, Assault Rifle, M4 / AR Platform,
Fire Select Icon
Fire Selector
PatrolBase | Fire Select Safe
Safe
Patrol Base | Fire Select - Semi Automatic
Semi Automatic
Patrol Base | Full Automatic
Full Automatic
Weapon Safety Features Icon
Safety Features
Trigger Lock
Shooter Configuration Icon
Shooter Configuration
Right Handed
Weapon Configuration Icon
Weapon Configuration
Standard
Internal Variants
Standard Gears
Standard Gears
Weapon Scale Icon
Weapon Scale
1:1
Suggested BB Weight
0.25g

Hop-Up

Hop-Up Unit Icon
Hop-Up Unit
Yes
Hop-Up Unit Adjuster Icon
Hop-Up Adjuster
Rotary
Hop-Up Unit Location Icon
Hop-Up Location
Behind mock bolt plate when the charging handle is pulled to the rear

Furniture

Weapon Furniture Icon
Furniture
  • Railed Handguard
  • Sliding Stock
  • MLOK Rail System
  • Bird Cage Flash Hider
  • QD Sling Point
  • Ambidextrous Sling Plate
  • 20mm Top Rail
  • Sling plate
Rail System Icon
Rail System
20mm RIS / RAS , MLOK Rail System,
Icon Stock Positions
Stock Setting
Sliding , M4 Crane Stock,
Weapon Length Extended
Stock Positions
6 Position
Sight Type Icon
Sight Type
None
Sling Plate Icon
Sling Options
Buffer Plate , QD ,

Barrel

Outer Barrel Length (in)
10''
Icon Thread Type
Outer Barrel Thread Type
Male
Icon Thread Direction
Outer Barrel Thread Direction
CCW (Counter Clockwise)
Outer Barrel Thread Size
14mm
Inner Barrel Diameter
6.03mm
Inner Barrel Length
280mm

Magazine Specific

Magazine Type
AEG
Magazine BB Capacity
Approx. 130 Rounds
Magazine BB Fill Method
Speed Loader
Magazine BB Fill Location
Top

Electric Gun Specific Information

Gearbox
Gearbox Icon
Gearbox Version
V2 Gearbox
Wiring Icon
Gearbox Wiring
Rear Wired
Spring Change Icon
Gearbox Quick Change Spring
Yes
Digital Trigger Icon
Gearbox Electronic Trigger
No
Split Gearbox Icon
Split Gearbox Design
No
Battery Specific
Battery Connector
Patrol Base | Icon | Deans
Deans
,
Deans To Mini Tamiya
Deans To Mini Tamiya Adaptor
,
Compatible Battery
Compatible Battery Type
Li-Po
Compatible Battery Configuration
Crane
Compatible Battery Voltage
7.4v

Product Testing Data

Notepad Icon
Test Description
330 FPS +/-10%
Notepad Icon
Tested Using
ASG Blaster 0.2g
Notepad Icon
Test Date
19/05/2023

Size guide

Joule Charts

Special Instructions

These table can be used as a reference to see if the BB weight you are using will be over acceptable Joulage limits at some Airsoft Sites in the UK. To check if the weight can be used chrono your weapon using the BB you intend to use, and then compare it to the chart.

FPS, Power and Joule Limits can vary from site to site, so please get in touch with where you're going to play with in advance to avoid disappointment.

Suggested limits are based on Joulage Limit rules used Halo Mill: Proving Grounds, with a 350fps limit for Automatic Replicas, 400fps for Semi-Automatic Replicas, and 500fps for Bolt Action Replicas.

Tap the tabs below to open the relevant chart for your replica.

Suggested limits are based on Joulage Limit rules used Halo Mill: Proving Grounds, and is the equivalent of 350fps, using 0.20g BB resulting in an upper limit of 1.14j.

Velocity BB Weight (Grams)
FPS 0.20 0.25 0.28 0.30 0.32 0.36 0.40 0.43 0.45 0.50
250 0.58 0.73 0.81 0.87 0.93 1.05 1.16 1.25 1.31 1.45
260 0.63 0.79 0.88 0.94 1.00 1.13 1.26 1.35 1.41 1.57
270 0.68 0.85 0.95 1.02 1.08 1.22 1.35 1.46 1.52 1.69
280 0.73 0.91 1.02 1.09 1.17 1.31 1.46 1.57 1.64 1.82
290 0.78 0.98 1.09 1.17 1.25 1.41 1.56 1.68 1.76 1.95
300 0.84 1.05 1.17 1.25 1.34 1.51 1.67 1.80 1.88 2.09
310 0.89 1.12 1.25 1.34 1.43 1.61 1.79 1.92 2.01 2.23
320 0.95 1.19 1.33 1.43 1.52 1.71 1.90 2.05 2.14 2.38
325 0.98 1.23 1.37 1.47 1.57 1.77 1.96 2.11 2.21 2.45
328 1.00 1.25 1.40 1.50 1.60 1.80 2.00 2.15 2.25 2.50
330 1.01 1.26 1.42 1.52 1.62 1.82 2.02 2.18 2.28 2.53
335 1.04 1.30 1.46 1.56 1.67 1.88 2.09 2.24 2.35 2.61
340 1.07 1.34 1.50 1.61 1.72 1.93 2.15 2.31 2.42 2.68
345 1.11 1.38 1.55 1.66 1.77 1.99 2.21 2.38 2.49 2.76
350 1.14 1.42 1.59 1.71 1.82 2.05 2.28 2.45 2.56 2.85
355 1.17 1.46 1.64 1.76 1.87 2.11 2.34 2.52 2.63 2.93
360 1.20 1.51 1.69 1.81 1.93 2.17 2.41 2.59 2.71 3.01

Suggested limits are based on Joulage Limit rules used at Halo Mill: Proving Grounds, and is the equivalent of 400fps, using 0.20g BB resulting in an upper limit of 1.49j.

Velocity BB Weight (Grams)
FPS 0.20 0.25 0.28 0.30 0.32 0.36 0.40 0.43 0.45 0.50
250 0.58 0.73 0.81 0.87 0.93 1.05 1.16 1.25 1.31 1.45
260 0.63 0.79 0.88 0.94 1.00 1.13 1.26 1.35 1.41 1.57
270 0.68 0.85 0.95 1.02 1.08 1.22 1.35 1.46 1.52 1.69
280 0.73 0.91 1.02 1.09 1.17 1.31 1.46 1.57 1.64 1.82
290 0.78 0.98 1.09 1.17 1.25 1.41 1.56 1.68 1.76 1.95
300 0.84 1.05 1.17 1.25 1.34 1.51 1.67 1.80 1.88 2.09
310 0.89 1.12 1.25 1.34 1.43 1.61 1.79 1.92 2.01 2.23
320 0.95 1.19 1.33 1.43 1.52 1.71 1.90 2.05 2.14 2.38
330 1.01 1.26 1.42 1.52 1.62 1.82 2.02 2.18 2.28 2.53
340 1.07 1.34 1.50 1.61 1.72 1.93 2.15 2.31 2.42 2.68
350 1.14 1.42 1.59 1.71 1.82 2.05 2.28 2.45 2.56 2.85
360 1.20 1.51 1.69 1.81 1.93 2.17 2.41 2.59 2.71 3.01
370 1.27 1.59 1.78 1.91 2.03 2.29 2.54 2.73 2.86 3.18
380 1.34 1.68 1.88 2.01 2.15 2.41 2.68 2.88 3.02 3.35
390 1.41 1.77 1.98 2.12 2.26 2.54 2.83 3.04 3.18 3.53
400 1.49 1.86 2.08 2.23 2.38 2.68 2.97 3.20 3.34 3.72
410 1.56 1.95 2.19 2.34 2.50 2.81 3.12 3.36 3.51 3.90

Suggested limits are based on Joulage Limit rules used at Halo Mill: Proving Grounds, and is the equivalent of 500fps, using 0.20g BB resulting in an upper limit of 2.32j.

Velocity BB Weight (Grams)
FPS 0.20 0.25 0.28 0.30 0.32 0.36 0.40 0.43 0.45 0.50
250 0.58 0.73 0.81 0.87 0.93 1.05 1.16 1.25 1.31 1.45
260 0.63 0.79 0.88 0.94 1.00 1.13 1.26 1.35 1.41 1.57
270 0.68 0.85 0.95 1.02 1.08 1.22 1.35 1.46 1.52 1.69
280 0.73 0.91 1.02 1.09 1.17 1.31 1.46 1.57 1.64 1.82
290 0.78 0.98 1.09 1.17 1.25 1.41 1.56 1.68 1.76 1.95
300 0.84 1.05 1.17 1.25 1.34 1.51 1.67 1.80 1.88 2.09
310 0.89 1.12 1.25 1.34 1.43 1.61 1.79 1.92 2.01 2.23
320 0.95 1.19 1.33 1.43 1.52 1.71 1.90 2.05 2.14 2.38
330 1.01 1.26 1.42 1.52 1.62 1.82 2.02 2.18 2.28 2.53
340 1.07 1.34 1.50 1.61 1.72 1.93 2.15 2.31 2.42 2.68
350 1.14 1.42 1.59 1.71 1.82 2.05 2.28 2.45 2.56 2.85
360 1.20 1.51 1.69 1.81 1.93 2.17 2.41 2.59 2.71 3.01
370 1.27 1.59 1.78 1.91 2.03 2.29 2.54 2.73 2.86 3.18
380 1.34 1.68 1.88 2.01 2.15 2.41 2.68 2.88 3.02 3.35
390 1.41 1.77 1.98 2.12 2.26 2.54 2.83 3.04 3.18 3.53
400 1.49 1.86 2.08 2.23 2.38 2.68 2.97 3.20 3.34 3.72
410 1.56 1.95 2.19 2.34 2.50 2.81 3.12 3.36 3.51 3.90
420 1.64 2.05 2.29 2.46 2.62 2.95 3.28 3.52 3.69 4.10
430 1.72 2.15 2.40 2.58 2.75 3.09 3.44 3.69 3.86 4.29
440 1.80 2.25 2.52 2.70 2.88 3.24 3.60 3.87 4.05 4.50
450 1.88 2.35 2.63 2.82 3.01 3.39 3.76 4.04 4.23 4.70
460 1.97 2.46 2.75 2.95 3.15 3.54 3.93 4.23 4.42 4.91
470 2.05 2.57 2.87 3.08 3.28 3.69 4.10 4.41 4.62 5.13
480 2.14 2.68 3.00 3.21 3.42 3.85 4.28 4.60 4.82 5.35
490 2.23 2.79 3.12 3.35 3.57 4.02 4.46 4.80 5.02 5.58
500 2.32 2.90 3.25 3.48 3.72 4.18 4.65 4.99 5.23 5.81
510 2.42 3.02 3.38 3.62 3.87 4.35 4.83 5.20 5.44 6.04