TNT APS-X Hop-Up System H+ Barrel & TR-HOP bucking Retrofit kit 4 Systema M4 PTW
Complete Your Loadout
Compatible and complementary products selected for this platform.
$237.00
The TNT APS-X H+ Retrofit Kit upgrades compatible Systema M4 PTW rifles with a CNC hop-up chamber, 370mm precision inner barrel, and TNT TR-HOP bucking.
Standard processing is approximately 3–4 business days. Warehouse-transfer products may require additional time.
Warehouse-transfer products may require additional processing before entering the Canadian shipping network.
May Vary
Technical Information
Review the complete product description, specifications, additional information and customer reviews.
TNT APS-X HOP-UP SYSTEM H+ RETROFIT KIT
FOR SYSTEMA M4 PTW RIFLES / 370MM
CNC HOP-UP • 6.02MM PRECISION BARREL • TR-HOP BUCKING • COMPLETE PTW RETROFIT PACKAGE
TNT APS-X // SYSTEMA M4 PTW // H+ HOP-UP // 370MM BARREL // 6.02MM BORE // TR-HOP // CNC MACHINED
Take your compatible Systema M4 PTW hop-up and barrel assembly to a more refined level with the TNT APS-X Hop-Up System H+ Barrel and TR-HOP Bucking Retrofit Kit – 370mm.
Designed as a precision upgrade package for compatible Systema M4 PTW rifles, this kit brings together three important components: a CNC-machined APS-X H+ hop-up unit, 370mm 6.02mm precision inner barrel, and TNT TR-HOP bucking.
Rather than upgrading the hop chamber, barrel, and bucking separately, TNT combines them into a matched retrofit package designed around improved adjustment, consistency, and airsoft BB stabilization.
Finished with TNT’s distinctive red anodized hop-up unit, the APS-X H+ kit is an excellent option for PTW owners looking for a premium barrel and hop-up upgrade without assembling individual components from multiple manufacturers.
APS-X H+
PRECISION STARTS AT THE HOP-UP
The heart of the retrofit kit is TNT’s:
APS-X H+ HOP-UP SYSTEM
The hop-up chamber is precision CNC machined, providing a rigid and precisely manufactured foundation for hop adjustment.
Fine hop adjustment is important because even small changes in pressure can affect BB trajectory and consistency.
By using a CNC-machined unit, TNT creates a hop-up platform intended to offer precise, repeatable adjustment for compatible Systema M4 PTW rifles.
The chamber is completed with a distinctive red anodized finish, giving the internal assembly TNT’s recognizable premium appearance while providing additional surface protection.
6.02MM // PRECISION INNER BARREL
The APS-X H+ system is paired with a:
370MM / 6.02MM PRECISION INNER BARREL
A quality inner barrel is a critical part of an airsoft rifle’s overall consistency.
The TNT barrel uses a 6.02mm precision bore, designed to provide controlled BB travel through the barrel when used with quality ammunition and a properly configured hop-up system.
At 370mm in length, this specific version is intended for compatible Systema M4 PTW configurations requiring the corresponding barrel length.
The combination of the precision barrel and APS-X hop-up creates a complete assembly rather than treating each component as an unrelated upgrade.
TR-HOP // TNT BUCKING INCLUDED
Completing the system is the included:
TNT TR-HOP BUCKING
The bucking is responsible for transferring hop pressure to the BB, making it an important part of the overall hop-up system.
By including TNT’s TR-HOP bucking with the APS-X chamber and 6.02mm barrel, the retrofit kit provides the core components required for a coordinated hop and barrel setup.
This also eliminates the need to immediately source a separate bucking when assembling the kit.
For Systema PTW owners looking to refresh or upgrade multiple parts of the hop assembly at once, the complete package provides a convenient solution.
BUILT FOR // SYSTEMA M4 PTW
This retrofit kit is specifically intended for:
SYSTEMA M4 PTW RIFLES
PTW platforms use specialized components and should not be treated as interchangeable with conventional M4 AEG systems simply because the external platforms may look similar.
The TNT APS-X H+ Retrofit Kit is designed around the Systema M4 PTW architecture, making platform compatibility an important consideration before purchasing.
The 370mm barrel length should also be checked against the specific configuration being upgraded.
PERFORMANCE ARCHITECTURE
THREE COMPONENTS. ONE MATCHED SYSTEM.
The strength of the TNT APS-X H+ Retrofit Kit is the combination of its core components.
Instead of focusing on a single upgrade, TNT brings together the hop chamber, precision barrel, and bucking into one PTW-oriented package.
APS-X H+ // THE CONTROL POINT
The CNC-machined chamber provides the foundation for hop adjustment.
Hop-Up: TNT APS-X H+
Construction: CNC Machined
Adjustment: Precision Adjustable
Finish: Red Anodized
6.02MM // THE BARREL
The precision inner barrel completes the core assembly.
Length: 370mm
Inner Bore: 6.02mm
Type: Precision Airsoft Inner Barrel
Platform: Compatible Systema M4 PTW
TR-HOP // THE CONTACT SYSTEM
TNT’s included bucking works alongside the chamber and barrel.
Bucking: TNT TR-HOP
Included: Yes
Purpose: Compatible Hop-Up Interface
Together, these components create a unified retrofit package designed specifically around compatible PTW applications.
WHY UPGRADE?
CONTROL • CONSISTENCY • COMPLETE INTEGRATION
The APS-X H+ kit isn’t simply about installing a tighter barrel.
Its advantage comes from upgrading several interacting components together.
CNC-MACHINED HOP-UP
Provides a precisely manufactured platform for hop adjustment.
6.02MM PRECISION BORE
Designed around consistent BB travel when correctly installed and maintained.
370MM LENGTH
A dedicated option for compatible PTW configurations requiring this barrel length.
TR-HOP INCLUDED
No need to immediately source a separate compatible bucking.
MATCHED TNT COMPONENTS
The chamber, barrel, and bucking are supplied together as a retrofit system.
RED ANODIZED FINISH
Provides a distinctive premium appearance to the CNC hop-up assembly.
COMPATIBILITY // IMPORTANT INFORMATION
This product is an aftermarket internal upgrade intended for compatible Systema M4 PTW rifles.
Confirm both platform compatibility and the required 370mm barrel length before ordering.
Aftermarket PTW components can have model-specific requirements, and compatibility should not be assumed based only on external M4 styling.
Professional installation is recommended where appropriate.
TNT APS-X H+
A COMPLETE PRECISION PACKAGE FOR THE SYSTEMA PTW.
The TNT APS-X Hop-Up System H+ Barrel and TR-HOP Bucking Retrofit Kit for Systema M4 PTW Rifles – 370mm brings three important internal components together in one premium upgrade package.
A precision CNC-machined APS-X H+ hop-up chamber, 370mm 6.02mm inner barrel, TNT TR-HOP bucking, and red anodized finish create a coordinated system designed for PTW owners looking to refine their rifle’s hop and barrel assembly.
Rather than relying on one component alone, the TNT package focuses on the relationship between the hop chamber, bucking, and precision barrel, providing a solid foundation for a properly tuned Systema PTW.
For customers searching for a TNT APS-X Systema PTW hop-up, Systema M4 PTW 370mm barrel, 6.02mm PTW inner barrel, TNT TR-HOP bucking, Systema PTW hop-up upgrade, or TNT APS-X H+ Retrofit Kit, this package delivers a premium all-in-one solution for compatible PTW platforms.
TNT APS-X / H+ HOP-UP / SYSTEMA M4 PTW / 370MM / 6.02MM PRECISION BARREL / TR-HOP
| Weight | 1.5 kg |
|---|---|
| Dimensions | 12 × 9 × 6 in |
| Product Specifications | Length: 370mm |
FAQ
â—‰ TNT APS-X H+ RETROFIT KIT // FAQ â—‰
Complete aftermarket hop-up and inner-barrel upgrade package for compatible Systema M4 PTW rifles, combining the CNC-machined APS-X H+ chamber, 370mm × 6.02mm precision inner barrel, and TNT TR-HOP bucking.
What is the TNT APS-X H+ Retrofit Kit?
It is an
aftermarket hop-up and inner-barrel upgrade package for compatible Systema M4 PTW rifles,
combining a CNC APS-X H+ hop-up, precision barrel, and TNT TR-HOP bucking.
What barrel length is included?
This specific version includes a
370mm inner barrel.
What is the inner barrel diameter?
The supplied barrel features a
6.02mm precision inner bore.
Is the hop-up chamber CNC machined?
Yes.
The APS-X H+ hop-up unit is
precision CNC machined.
What color is the hop-up?
The APS-X H+ chamber features a distinctive
red anodized finish.
Is a bucking included?
Yes.
The retrofit package includes a
TNT TR-HOP bucking.
Is this designed for Systema PTW rifles?
Yes.
This retrofit kit is specifically listed for
compatible Systema M4 PTW rifles.
Will it fit a normal M4 AEG?
Do not assume compatibility.
Systema PTW and conventional M4 AEG platforms use different internal systems, and this kit is specifically intended for
compatible Systema M4 PTW applications.
Does a 6.02mm barrel automatically increase accuracy?
No single component guarantees accuracy.
Barrel quality, hop adjustment, bucking condition, BB quality, installation, cleanliness, and the condition of the overall rifle can all influence performance.
Will the kit increase range?
The supplied system is designed around
improved hop control and consistency,
which can contribute to effective BB flight when properly configured. Actual results vary depending on the complete setup and ammunition.
Should I use quality BBs with a precision barrel?
Yes.
High-quality, clean, correctly sized
airsoft BBs are particularly important when using a precision inner barrel.
Is professional installation recommended?
For PTW owners unfamiliar with hop-up and inner-barrel servicing,
installation by a qualified airsoft technician is recommended.
Proper alignment and assembly are important for reliable operation.
What makes the TNT APS-X H+ Retrofit Kit stand out?
The TNT APS-X H+ Retrofit Kit combines a
precision CNC-machined APS-X H+ hop-up chamber, 370mm × 6.02mm precision inner barrel, TNT TR-HOP bucking, and Systema M4 PTW-specific compatibility
in one integrated upgrade package. It is designed for PTW owners looking to refine the hop-up and inner-barrel system while maintaining a platform-specific component solution.
Be the first to review “TNT APS-X Hop-Up System H+ Barrel & TR-HOP bucking Retrofit kit 4 Systema M4 PTW”
Product Questions
Important information about ordering, processing, shipping and product compatibility.
Reviews
There are no reviews yet.