Novritsch SSX303 NBB Gas Rifle

Novritsch
Code: X3F2
£299.99
  • DMR MK23 Carbine platform
  • 6.03mm Tightbore inner barrel
  • ~400 FPS on 0.2g with VORSK V6 gas - Spicy!

If you are a sniper who is fed up with the wind ruining their kills or you have a sneaky playstyle and want to push your effective range up into DMR territory, the Novritsch SSX303 is calling your name! This MK23-based DMR carbine is built like a tank and shoots like a laser beam thanks to its high FPS setup with an extended 6.03mm tightbore inner barrel, TDC HOP-up unit with a tool-less external adjuster and highly efficient non-blowback action.

The chassis of the SSX303 is constructed from CNC machined aluminium, and as we would expect for a modern platform, is bristling with M-LOK negative space attachment slots with a 36cm long 20mm Picatinny top rail, ready for your choice of optical sight. The controls of the SSX303 are all ambidextrous, making it a fantastic alternative to a bolt action sniper rifle for left-handed shooters, and the stock mounts to a standard M4/AR-15 buffer tube, opening up about a million options when it comes to mounting aftermarket stocks.

Whether you are a stealthy woodland warrior or you fancy giving the DMR playstyle a go, you'll have a hard time finding anything with a better blend of low weight, long range and near silent muzzle report than the SSX303 Stealth DMR Gas Non-Blowback Rifle!

Full description

Ghillie gear from Novritsch...

Description

The Novritsch SSX303 Stealth DMR Gas Non-Blowback Rifle builds upon years and years of MK23 development amongst enthusiasts, hybridizing several homebrew solutions into a pre-build DMR carbine with a professional look, high grade materials and fantastic finish. 

The combination of the MK23 NBB pistol internal system, extended inner barrel and TDC HOP-up unit has been something Airsoft snipers have been putting together for many years now but not without the technical hurdles and trial and error which come with any Airsoft custom build. 

The SSX303 has all of this and much, much more already installed from the factory and tested to perfection by Novritsch's development team. The result of this is a pre-build DMR rifle which is rock solid, with all the performance benefits of a lifestyle sniper's custom MK23 but without any of the sketchy bodge jobs and the fiddling and time commitments that come along with them. If you ever wanted to just pick up a performance-oriented DMR platform and just get to work with no upgrades and tuning necessary, the SSX303 Stealth DMR should bring a smile to your face, and a frown to your enemies'!

Starting at the front, we can find 14mm CCW male threads at the tip of the outer barrel, ready for a tracer, suppressor or flash hider of your choice. We recommend going for a suppressor for the SSX303 to take advantage of its super silent action; adding a foam-filled suppressor will turn the muzzle crack into a muffled thud, making it nearly impossible to pinpoint your location amongst the ambient noise. Looks-wise, we think the CYMA dummy sound suppressor suits the SSX303 perfectly but you are free to mount whatever you please thanks to the common 14mm CCW threading. 

The chassis extends to almost the tip of the barrel, giving you plenty of room for accessories and wasting no space whatsoever. At the 3, 6, and 9 o'clock positions, we are treated to M-LOK negative space attachment slots, as well as additional slots at the upper offset angles. These allow you to mount M-LOK accessories such as bipods, grips and tactical flashlights directly but you can also make use of 20mm Picatinny rail adapters for M-LOK to mount more common 20mm Picatinny accessories. The chassis is constructed from CNC machined aluminium, allowing it to maintain a slim profile and low weight while being extremely rigid and well-suited to mounting optics. 

Moving rearwards we come to the mock ejection port, and inside we can see the adjustment dial for the TDC adjustable HOP-up unit. The dial allows you to adjust the backspin effect applied to your BBs and tune the SSX303 for different weights of ammunition. The tool-less external adjuster means you can adjust the HOP-up on the fly, making mid game changes when you need to without carrying Allen keys or disassembling the rifle. We recommend going for 0.3g and above when it comes to BB weight as the HOP-up is remarkably strong and capable of handling most sniper-weight BBs. 

At the rear of the chassis, we have an M4/AR-15 buffer tube constructed from alloy with a steel castle nut. The buffer tube provides 6 positions of adjustment for whichever stock you choose to mount. The included stock is an RS3 type A-frame design with the adjustment lever in the centre, based on the real world Magpul MOE stock and credited with reducing snags thanks to the adjustment lever being contained within the A-frame of the stock. Below the buffer tube, we can see a QD sling socket ideally placed for a single-point sling mounted via a QD sling swivel (not included) and at the toe of the RS3 stock we have an additional ambidextrous QD socket in case you prefer a two-point sling setup. 

The frame/lower receiver of the SSX303 is a MK23 pistol frame, familiar to many snipers with its comfortable design including ambidextrous controls and an enlarged trigger guard. The trigger guard has plenty of space inside for full finger gloves and is curved at the front to allow for its use as an additional point of contact. The magazine release is the pushdown MK23/USP style release and is mirrored on each side, making it great for left-handed shooters and those who like to shoulder-to-shoulder transition to make the most of the surrounding cover. 

The manual safety is located at the rear of the frame and can only be activated when the hammer is cocked. Obviously, the hammer is concealed beneath the chassis, but the hammer can still be cocked by carefully pulling the trigger back to halfway, after which you will feel it click. With the trigger half-cocked you can flip the safety on using either the left or right side safety catch. With the red enamel dot revealed, the rifle is ready to fire, and with the white enamel dot revealed the rifle is in safe mode and the trigger is locked. Half cocking the trigger is also a great way to reduce the trigger pull force of the SSX303 and get that first shot off with better accuracy. 

At the base of the grip, we can see the Novritsch logo in his signature font; a subtle nod to the man behind this awesome DMR carbine design. Just above the grip, on the chassis, we also have laser engraved trademarks reading "NOVRITSCH SSX-303". The grip itself mimics the MK23 NBB pistol with crackle texture on either side and pyramidal texture on the front and rear, providing exceptional gripping qualities no matter the weather conditions. 

Internally, the SSX303 is a true diamond, boasting accuracy at up to 65 meters when set up correctly and FPS/velocity well within the realms of DMR territory. During our tests, we achieved approximately 450 FPS with 0.2g BBs and VORSK V8 green gas which is probably a bit too hot for most site's DMR rules but shows the full potential of this system when pushed to the limits. With VORSK V6 green gas we got a slightly more sane ~400 FPS with 0.2g BBs so we recommend sticking to V6 or equivalent standard-pressure green gas and saving the higher pressure stuff for the winter months. 

This immense accuracy and range is all thanks to the highly efficient MK23 non-blowback action, the Maple Leaf 6.03mm tightbore inner barrel and the TDC HOP-up unit, pairing together for an out-of-the-box DMR that is quieter than a mouse fart and can reach out to sniper rifle range. The magazine of the SSX303 also has its part to play, with a redesigned gas route bucking for a smoother trigger feel and a widened follower track which allows for it to be loaded through the front in seconds. 

The magazine catch spring has also been considerably redesigned, which any MK23 user will know, was something the platform was crying out for. Thoughtful touches like this show the experience the Novritsch development team has with Airsoft guns and provide confidence that the SSX303 was put together by some of the best techs and designers in the business. 

If you like the idea of a DMR but you want to sneak around unseen all day, the SSX303 is the right tool for the job. Whether you are transitioning over from a bolt action sniper rifle or an AEG assault rifle, you will find the SSX303 to be a superb long-range skirmish platform which has genuinely surprising performance coupled with supreme build quality. 

Features

  • CNC aluminium chassis - Strong and lightweight
  • 14mm CCW male threaded outer barrel - Tracer and suppressor ready
  • M-LOK Negative space attachment slots on chassis/handguard - Ready for M-LOK accessories
  • 20mm Picatinny top rail - Mount scopes, red dot sights, DBALs and the kitchen sink if you want!
  • Ambidextrous magazine release - MK23/USP style, great for right or left-handed users
  • Ambidextrous trigger lock safety - Only works when the internal hammer is cocked with a half trigger pull
  • 6-Position M4/AR-15 buffer tube - Alloy construction, allows aftermarket M4/AR-15 stocks to be fitted
  • RS3 A-frame sliding stock - Modern stock with QD sockets, reduced snagging thanks to the A-frame design
  • QD Sling socket on the rear of the chassis - Ideally placed for a single-point sling with QD swivel
  • Enlarged trigger guard - MK23 style, plenty of space for full finger gloves
  • MK23 Based design - VSR type HOP-up buckings and inner barrels are compatible 
  • When a suppressor is fitted, this thing is whisper quiet - Perfect for the sneakier snipers and marksmen
  • Approx. 400 FPS with 0.2g BBs and VORSK V6 Green Gas - DMR rifle, check with your local site before using
  • Approx. 450 FPS with 0.2g BBs and VORSK V8 Green Gas - A bit too spicy for most sites!
  • Recommended BB weight 0.3g+ - Always chrono on the BB weight you are using and calculate muzzle energy (joules)

Package Includes

  • Novritsch SSX303 Stealth DMR Gas Non-Blowback Rifle
  • 24rnd SSX23/SSX303 Green Gas Magazine
  • User manual 

Specification

General

Weapon Construction External
Weapon Type
Sniper Rifle , DMR Type ,
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. 400fps ± 10%, using 0.20g BB
Site Legal Icon
Site Legal, using 0.20g BB
Yes
Screwdriver Icon
Pre-Built
Yes
Package
Included Items
Magazine
Skill Level Icon
User Skill Level
Regular Player
Patrol Base - Warning Icon
Warnings
Lubrication is required

Weight and Dimension

Weight KG Icon
Weight (KG)
Approx. 1.746kg
Weapon Length Collapsed
Length (Collapsed)
64cm
Weapon Length Extended
Length (Extended)
72.5cm

Construction

Colour Wheel Greyscale
Primary Colour
Black
Construction Icon
Construction
CNC Aluminium chassis. Alloy outer barrel, buffer tube and trim parts. High density polymer lower receiver/frame, stock. Steel castle nut, body screws and stock QD sling socket.
Weapon Construction External
External Construction
Polymer
Alloy
Aluminium
Steel
Gearbox Icon
Internal Construction
Polymer
Alloy
Aluminium
Steel

Weapon Specific

Power Source Icon
Powered By
Green Gas
Blowback Icon
Blowback
None
Weapon Platform
Sniper Rifle, Novritsch SSX303,
Magazine Style Icon
Magazine Style
Pistol Magazine, MK23, TMK23, Novritsch SSX303/SSX23 Magazines,
Fire Select Icon
Fire Selector
PatrolBase | Fire Select Safe
Safe
Patrol Base | Fire Select - Semi Automatic
Semi Automatic
Weapon Safety Features Icon
Safety Features
Trigger Lock
Shooter Configuration Icon
Shooter Configuration
Ambidextrous
Weapon Configuration Icon
Weapon Configuration
Standard
Weapon Scale Icon
Weapon Scale
1:1
Suggested BB Weight
0.3g

Hop-Up

Hop-Up Unit Icon
Hop-Up Unit
Yes
Hop-Up Unit Adjuster Icon
Hop-Up Adjuster
External adjuster on ejection port
Hop-Up Unit Location Icon
Hop-Up Location
Tool-less TDC HOP-up adjuster dial located inside the ejection port, accessible from the right side of the rifle.

Furniture

Weapon Furniture Icon
Furniture
  • Railed Handguard
  • AR Buffer Tube
  • Railed Receiver
  • Ambidextrous Magazine Release
  • Sliding Stock
  • Ambidextrous Safety
  • Threaded Outer Barrel
  • QD Sling Point
  • Textured Pistol Grip
  • Enlarged Trigger Guard
  • Sling point on stock
  • M-LOK Handguard
Rail System Icon
Rail System
20mm Railed Receiver, M-LOK Rail system,
Icon Stock Positions
Stock Setting
Sliding , Multi-Position ,
Weapon Length Extended
Stock Positions
6 Position
Sight Type Icon
Sight Type
None
Sling Plate Icon
Sling Options
Stock , QD , Receiver ,

Barrel

Outer Barrel Length (in)
12.25''
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
303mm

Magazine Specific

Magazine Type
Low Capacity , Gas,
Magazine BB Capacity
Approx. 24 Rounds
Magazine BB Fill Method
Speed Loader
Magazine BB Fill Location
Top, Front,
Magazine Gas Fill Location
Bottom
Magazine Gas Type
Green Gas

Gas Gun Specific

Gas Can Icon
Gas Compatability
Summer Gas, Green Gas, Red Gas, Black Gas,
Gas Can Icon
Gas Recommendation
Green Gas

Pistol Specific

Construction Icon
Slide Material
Polymer
Icon Pistol Slide
Pistol Slide Type
Standard

Product Testing Data

Notepad Icon
Test Description
400 FPS +/- 10%
Notepad Icon
Tested Using
0.2g ASG BLASTER & VORSK V6 Green Gas
Notepad Icon
Test Date
13/07/2023

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