G-SERIES GUIDE - Tokyo Marui Glock
The complete guide to the Tokyo Marui G-Series (Glock): the most popular airsoft pistol in the world, a growing IPSC competition platform, and the most reliable sidearm on the market. Every component explained, the best upgrades from CowCow, Maple Leaf, Nine Ball and more — and the science behind each one. Compatible with the AAP-01 in many parts.
Table of Contents
- IPSC / Competition Build
- Why the G-Series
- Hop-Up
- Hop-Up Buckings
- Inner Barrels
- Outer Barrels
- Nozzles & Blowback
- Triggers
- Springs
- Magwells
- Optics & Sights
- Magazine Accessories
- Magazines
- General Accessories
- Replicas
- G-Series Collections
1. IPSC / Competition Build
The G-Series is gaining ground as an airsoft IPSC competition platform. Compared to the Hi-Capa, it offers simpler mechanics, lower maintenance, and direct compatibility with competition holsters. Here is the recommended IPSC build path:
IPSC Build Path (priority order)
-
Improved nozzle — Better gas seal and shot-to-shot consistency. The foundation of any competitive build
cow-cow-technology-tm-g17-improved-nozzle,cow-cow-technology-tm-g19-nozzle-improved,cow-cow-technology-tm-g18c-nozzle-improved
-
Short stroke + Recoil Spring — Reduces slide travel for faster cycling. Combine with a reinforced recoil spring to maintain reliable cycling
cow-cow-technology-tm-g17-gen4-120-recoil-spring,cow-cow-technology-tm-g19-spring-150-percent
-
Trigger — Immediate tactile response. The TTI Victor or the CowCow Tactical offer adjustable pre-travel
tti-victor-trigger-unit-aluminium-silver,tti-adjustable-tactical-trigger-g-series,cow-cow-technology-tm-g-series-trigger-gold
-
Magwell — Fast reloads. Essential in competition
cow-cow-technology-tm-g17-gen4-magwell-black,cow-cow-technology-tm-g19-magwell-black
-
Speed Holster — Instant draw for action stages
ctm-g-series-holster-black
IPSC Tip: The G-Series is lighter than the Hi-Capa and easier to maintain. For competition, prioritize cycle speed (short stroke + nozzle) over power.
2. Why the G-Series
The Tokyo Marui G-Series is the most popular and proven GBB pistol in airsoft. Here is why:
- Legendary reliability — The Tokyo Marui design works under any conditions. Thousands of shots without failures
- Massive aftermarket — CowCow, Maple Leaf, Nine Ball, TTI, Mita, Wii Tech... the upgrade selection is unmatched
- AAP-01 compatibility — Many internal parts are interchangeable with the Action Army AAP-01, multiplying your options
- IPSC competition — A growing platform for Airsoft IPSC. Simpler and lighter than the Hi-Capa
- Affordable magazines — TM G-Series magazines are the most accessible on the GBB market
- Universal holsters — Compatible with almost any real Glock holster on the market
G17 vs G18C vs G19 — Comparison
| Model | Size | Firing Mode | Barrel | Price | Ideal for |
|---|---|---|---|---|---|
| G17 Gen.3 | Full-size | Semi | 113mm | 159.95€ | General use, IPSC, upgrades |
| G17 Gen.4 | Full-size | Semi | 113mm | 179.95€ | Improved grip, Gen4-specific aftermarket |
| G18C | Full-size | Semi/Full Auto | 97mm | 169.95€ | CQB, fun, full auto fire |
Recommendation: The G17 Gen.3 is the most versatile and has the widest parts compatibility. The G18C adds full-auto for CQB. The G17 Gen.4 has a textured grip and Gen4-specific CowCow parts.
3. Hop-Up
The hop-up controls the backspin applied to the BB, determining range and accuracy. In the G-Series, the hop-up chamber is compact but critical.
CowCow G17 Gen4 Hop-Up Chamber
The CowCow chamber for the G17 Gen4 is a direct upgrade over the stock part. CNC aluminium with precise fitment:
Maple Leaf Hop-Up Chambers
Maple Leaf offers complete kits with chamber + inner barrel + Autobot bucking included. Options for 84mm barrel (G19/G18C) and standard length:
The Crazy Jet 84mm kit includes chamber and Crazy Jet barrel — ideal for compacts. The Hop Up Chamber Kit is compatible with G17/G18/G34/G35.
Hop Levers
The hop-up lever controls adjustment precision. An improved lever allows for finer and more consistent adjustment:
4. Hop-Up Buckings
The hop-up bucking directly touches the BB. A good bucking is the difference between erratic shots and consistent groupings.
Maple Leaf Autobot 50°
The Maple Leaf Autobot 50° buckings come included in the Maple Leaf inner barrel kits. They are the benchmark for GBB: excellent seal, progressive hop-up and great durability. The 50° hardness is versatile for most conditions.
Both kits include inner barrel + Autobot 50° bucking. The 113mm is for the G17, the 84mm for the G19/G18C/AAP-01C.
AAP-01 Compatibility: The 84mm buckings and barrels for the G-Series are directly compatible with the AAP-01C (compact version). The same upgrade works for both platforms.
5. Inner Barrels
The inner barrel is where accuracy is born. In the G-Series there are three main lengths: 84mm (G19/G18C), 97mm (G18C standard) and 113mm (G17).
Inner Barrel Comparison Table
| Barrel | Length | Type | Compatible with | Price |
|---|---|---|---|---|
| Maple Leaf + Autobot | 113mm | Kit (barrel + bucking) | G17 | 24.95€ |
| Maple Leaf + Autobot | 84mm | Kit (barrel + bucking) | G19, G18C, AAP-01C | 22.95€ |
| Maple Leaf Crazy Jet | 84mm | Kit (barrel + chamber) | G19, G18C, AAP-01C | 29.95€ |
| Stalker Morpheus | 84mm | Dual Bore Hybrid | G19, AAP-01C | 49.95€ |
| Nine Ball 18C | 97mm | Precision 6.00mm | G18C | 14.95€ |
Recommendation: For the G17, the Maple Leaf 113mm + Autobot is the best value for money. For G19/compacts, the Stalker Morpheus 84mm is the premium option with dual bore. The Nine Ball 18C is specific to the G18C.
6. Outer Barrels
The G-Series outer barrel is primarily aesthetic but serves an important function: the Nine Ball Non-Recoiling eliminates barrel movement when firing, improving accuracy.
Nine Ball G17 Non-Recoiling Outer Barrel
By locking the outer barrel in place, vibrations during firing are eliminated. The inner barrel remains perfectly stable, improving first-shot accuracy. Ideal for IPSC and competitive CQB:
7. Nozzles & Blowback
The nozzle is the part that seals the gas chamber and directs gas towards the BB. An improved nozzle increases gas efficiency, FPS consistency and cycling reliability.
CowCow Improved Nozzles (by model)
CowCow manufactures model-specific nozzles for each G-Series model. Important: They are NOT interchangeable between models.
- G17 Nozzle: For G17 Gen.3 and Gen.4
- G19 Nozzle: For G19 exclusively
- G18C Nozzle: For G18C. Critical in full-auto to prevent gas leaks
Blow Back Housing
The blow back housing controls the slide cycle. The improved CowCow housing offers better seal and gas distribution:
High Flow Valve
The high flow valve allows more gas to pass with each shot, improving blowback response especially in cold weather:
Gas Route Seal
The Nine Ball gas route seal prevents leaks between the magazine and the chamber:
▶ Improved Piston Head
8. Triggers
A good trigger improves tactile response and firing speed. In the G-Series there are two philosophies: aesthetic triggers with better feel, and competition triggers with adjustable pre-travel.
CowCow G-Series Triggers
CowCow triggers are CNC aluminium with anodized finishes. Drop-in, no modifications needed. Available in various colours:
TTI Triggers
TTI triggers are the premium choice for competition. The Victor Trigger is compatible with G-Series and AAP-01. The Adjustable Tactical lets you adjust pre-travel and over-travel:
Trigger Levers (Steel)
CowCow steel trigger levers replace the original zinc part. Greater durability and improved reset feel:
▶ Trigger housings
9. Springs
Springs control cycle speed, blowback power and overall reliability. There are two types: recoil springs (slide return spring) and hammer springs (hammer spring).
CowCow Recoil Springs (by model)
| Model | Product | Percentage | Effect | Price |
|---|---|---|---|---|
| G17 Gen4 | Recoil Spring | 120% | Faster cycle, short stroke | 9.95€ |
| G19 | Recoil Spring | 150% | Faster cycle, short stroke | 9.95€ |
Mita Springs
The Mita set includes hammer spring 120% + recoil spring 140% in a single package. A balanced combination to improve cycling without sacrificing reliability:
CowCow Hammer Spring 140%
The 140% reinforced hammer spring improves the hammer strike on the valve, increasing gas consistency — especially useful in cold weather:
Spring Guides
CowCow stainless steel spring guides eliminate flex and play in the recoil spring:
▶ Fire Pin Lock Spring
10. Magwells
The magwell widens the grip opening, guiding the magazine for faster and more reliable reloads. Essential for IPSC competition.
CowCow Magwells
CNC aluminium, drop-in installation. Available for G17 Gen4 and G19:
11. Optics & Sights
Mounting an optic on the G-Series requires a mounting base (direct mount) or a rear sight with a slot. There are also fibre optic options for fast target acquisition.
Nine Ball Aegis Direct Mount
The Nine Ball Aegis system mounts directly on the G-Series slide, allowing you to install micro red dots without permanent modifications:
Fibre Optic Sights
Fibre optic sights capture ambient light for ultra-fast target acquisition. Ideal for competition and CQB:
Wii Tech RMR Fiber Optic Rear Sight
Combines a rear sight with fibre optics and an RMR slot for mounting micro red dots. The best of both worlds:
Mita CNC Sights
High quality CNC aluminium sights. The Type A rear sight and VFC front sight offer a clean and precise profile:
▶ G18C aluminium rear sight
12. Magazine Accessories
Tactical magazine baseplates make extraction easier and add impact protection. CowCow offers 3 colours:
Anodized CNC aluminium. Drop-in for all Tokyo Marui G-Series magazines.
▶ CTM CNC Base (AAP-01/Glock)
13. Magazines
G-Series magazines are among the most affordable on the GBB market. There are three main options:
TM Standard Magazine (25rd) — 24.95€
The basic Tokyo Marui magazine. Compatible with G17, G18C, G19, G26 and AAP-01. The benchmark in reliability:
Extended Magazine 50 Shots — 34.95€
Double capacity for long games or full-auto fire with the G18C. The magazine extends past the grip but the extra capacity makes up for it:
Drum Mag 350rd — 79.95€
For absolute chaos. 350 rounds with fast reloading. Compatible with WE and adaptable to TM with an adapter. Ideal for the G18C in full-auto:
14. General Accessories
Parts that improve the durability, function and overall aesthetics of your G-Series.
Stainless Steel Pin Set
Replaces the stock steel pins with CNC stainless steel. Greater durability and premium finish:
M6 Recoil Buffer
The recoil buffer cushions the slide impact at the end of its travel, reducing wear on internal parts and noise:
Cocking Handles / Charging Handles
Make slide manipulation easier. Useful for competition and when wearing gloves:
Speed Holster
Competition holster for fast draw. Trigger-retention system with instant release:
Hammer Sets and Knockers
Stainless steel internal parts replace the original zinc parts for greater durability:
▶ G18C Auto Sear
▶ G19 Hammer Housing
15. Replicas
All available Tokyo Marui G-Series replicas. Each with its own unique characteristics:
Replica Comparison Table
| Model | Firing Mode | Inner Barrel | Features | Price |
|---|---|---|---|---|
| G17 Gen.3 | Semi | 113mm | The classic. Maximum aftermarket, the most versatile base | 159.95€ |
| G17 Gen.4 | Semi | 113mm | Textured grip, Gen4 CowCow parts, interchangeable backstrap | 179.95€ |
| G18C | Semi / Full Auto | 97mm | Fire selector, devastating CQB, drum mag compatible | 169.95€ |
Note: All Tokyo Marui G-Series replicas come with adjustable hop-up, inner barrel and one magazine included. They run on Green Gas or Duster Gas.