MENU
Operator Profile
Mechanical Design for Beginners
Mechanical Materials Explained for Beginners
Mechanics of Materials Explained for Beginners
Tolerances Explained for Beginners
Mechanical drawings that even beginners can understand
Technology and lessons learned from the Comet plane crash
Engineer's Life Hacks & Casual Talk
Gadget reviews
This site features reviews and explanations of useful tools such as PCs, digital cameras, and smartphones.
A series of explanations on anything by a mechanical designer.
Kazubara, a former engine designer at Honda R&D (motorcycles), explains various things in the world from the perspective of a mechanical designer.
Current Events Topics
This blog, written by kazubara, explains topics that interest him from the perspectives of mechanical design and systems engineering.
Explanation related to generative AI
This site provides easy-to-understand explanations of news and mechanisms related to generative AI.
Global GX and Energy Technology Analysis
This book analyzes environmental policies, specifically GX (Geographical Exploration), and energy policies from the perspective of a mechanical designer, drawing on the author's experience.
Website operation related
This article introduces the website-related experience, knowledge, and skills gained from operating kazubara.net.
Systems Engineering (SE)
This category provides an introduction to systems engineering and helps you master its fundamentals.
Key points for job hunting as a mechanical engineer
Airsoft gun-related reviews and customizations
Air Electric Gun
Air Electric Gun
東京マルイ MP5K HC
Tokyo Marui HK416D DEVGRU
Tokyo Marui Next Generation Electric Gun URG-I SOPMOD BLOCK3
This is a review, disassembly, and customization guide for the Tokyo Marui Next Generation Electric Gun URG-I SOPMOD BLOCK3.
VFC HK416 CAG
VFC Mk18 mod.1 AEG
G&P XM177E1 AEG
KRYTAC KRISS VECTOR
LCT Electric Airsoft Gun AK-12
LCT AK74 NV
MAGPUL PTS masada
ICS Sportline M4 CQB Clear Color
G&G FN F2000 Tactical ETU AEG
G&G CM16 SRXL ETU
G&G CM16 LMG ETU
DMT AR15 Combat Lighter DMT-07
gas gun
BATON BG-17 CO2 GBB (Glock 17 GEN.5)
BATON BM-45 CO2 GBB 3rd Lot
LAYLAX SIG SAUER M17 (CO2)
KSC MK23 SOCOM Pistol CO2 ABS
KSC M9 HW system7
KSC Cz75 2nd HW system7
KSC AK74M system7 two
ACTIONARMY AAP-01 Assassin JP ver.
Tokyo Marui CQBR Block 1 GBB
Tokyo Marui Glock 17 GEN4
Tokyo Marui Glock 19 GEN3
Tokyo Marui CURVE Fixed Slide Gas Compact Carry Gun No. 4
東京マルイ デトニクス.45 コンバットマスター
This is a review and customization guide for the Tokyo Marui Detonics .45 Combat Master.
Tokyo Marui V10 Ultra Compact Silver
This is a review and customization guide for the Tokyo Marui V10 Ultra Compact Silver.
UMAREX/VFC G45 (Glock 45)
UMAREX/VFC HK VP9 (SFP9)
UMAREX/VFC GLOCK19X
WE SVD GBB Aluminum Receiver, Polymer Stock Version
Marushin Five-seveN CO2
Air Cocking
Tokyo Marui Air Revolver Pro SAA.45 Artillery 5 1/2 inch Black
This is a review, disassembly, and customization guide for the Tokyo Marui Air Revolver Pro SAA.45 Artillery 5 1/2 inch Black.
Tokyo Marui Colt M1911 Government HG Airsoft Gun
Tokyo Marui SOCOM MK23 HG
This is a review and customization guide for the Tokyo Marui SOCOM MK23 HG air cocking handgun.
Maruzen CA870 Charger NEW HOP
Maruzen CA870 Charger (Old Hop)
Optical Instruments
Red dot sight
ス コ ー プ
mount
Lucky Bag Series
model
ATI MINI AR-15 (M4A1 RIS) Metal Scale Model
ATI MINI .50 CAL Barrett M82 Metal Scale Model
4D MODEL M14 EBR
Survival game field introduction
Introducing Turf Battlefield
Yanex
Airsoft gun maintenance and customization considerations
CO2 gas blowback magazine analysis
Gas blowback operating mechanism
Rust prevention and treatment for iron (blackening)
Electrical system customization for electric airsoft guns
Customizing the drive system of an electric airsoft gun
Battery and charger related products
Hop packing, hop chamber custom
Tools used for customization (tools, measuring instruments, chronographs, etc.)
Kazubara
Site administrator
A former engine designer at an automobile manufacturer. I will share my mechanical design skills based on 15 years of work experience. For job inquiries, please contact me using the inquiry button below.
Contact Us
Teaching mechanical design and engineering airsoft guns
Kazubara Blog
Operator Profile
Mechanical Design for Beginners
Mechanical Materials Explained for Beginners
Mechanics of Materials Explained for Beginners
Tolerances Explained for Beginners
Mechanical drawings that even beginners can understand
Technology and lessons learned from the Comet plane crash
Engineer's Life Hacks & Casual Talk
Gadget reviews
This site features reviews and explanations of useful tools such as PCs, digital cameras, and smartphones.
A series of explanations on anything by a mechanical designer.
Kazubara, a former engine designer at Honda R&D (motorcycles), explains various things in the world from the perspective of a mechanical designer.
Current Events Topics
This blog, written by kazubara, explains topics that interest him from the perspectives of mechanical design and systems engineering.
Explanation related to generative AI
This site provides easy-to-understand explanations of news and mechanisms related to generative AI.
Global GX and Energy Technology Analysis
This book analyzes environmental policies, specifically GX (Geographical Exploration), and energy policies from the perspective of a mechanical designer, drawing on the author's experience.
Website operation related
This article introduces the website-related experience, knowledge, and skills gained from operating kazubara.net.
Systems Engineering (SE)
This category provides an introduction to systems engineering and helps you master its fundamentals.
Key points for job hunting as a mechanical engineer
Airsoft gun-related reviews and customizations
Air Electric Gun
Air Electric Gun
東京マルイ MP5K HC
Tokyo Marui HK416D DEVGRU
Tokyo Marui Next Generation Electric Gun URG-I SOPMOD BLOCK3
This is a review, disassembly, and customization guide for the Tokyo Marui Next Generation Electric Gun URG-I SOPMOD BLOCK3.
VFC HK416 CAG
VFC Mk18 mod.1 AEG
G&P XM177E1 AEG
KRYTAC KRISS VECTOR
LCT Electric Airsoft Gun AK-12
LCT AK74 NV
MAGPUL PTS masada
ICS Sportline M4 CQB Clear Color
G&G FN F2000 Tactical ETU AEG
G&G CM16 SRXL ETU
G&G CM16 LMG ETU
DMT AR15 Combat Lighter DMT-07
gas gun
BATON BG-17 CO2 GBB (Glock 17 GEN.5)
BATON BM-45 CO2 GBB 3rd Lot
LAYLAX SIG SAUER M17 (CO2)
KSC MK23 SOCOM Pistol CO2 ABS
KSC M9 HW system7
KSC Cz75 2nd HW system7
KSC AK74M system7 two
ACTIONARMY AAP-01 Assassin JP ver.
Tokyo Marui CQBR Block 1 GBB
Tokyo Marui Glock 17 GEN4
Tokyo Marui Glock 19 GEN3
Tokyo Marui CURVE Fixed Slide Gas Compact Carry Gun No. 4
東京マルイ デトニクス.45 コンバットマスター
This is a review and customization guide for the Tokyo Marui Detonics .45 Combat Master.
Tokyo Marui V10 Ultra Compact Silver
This is a review and customization guide for the Tokyo Marui V10 Ultra Compact Silver.
UMAREX/VFC G45 (Glock 45)
UMAREX/VFC HK VP9 (SFP9)
UMAREX/VFC GLOCK19X
WE SVD GBB Aluminum Receiver, Polymer Stock Version
Marushin Five-seveN CO2
Air Cocking
Tokyo Marui Air Revolver Pro SAA.45 Artillery 5 1/2 inch Black
This is a review, disassembly, and customization guide for the Tokyo Marui Air Revolver Pro SAA.45 Artillery 5 1/2 inch Black.
Tokyo Marui Colt M1911 Government HG Airsoft Gun
Tokyo Marui SOCOM MK23 HG
This is a review and customization guide for the Tokyo Marui SOCOM MK23 HG air cocking handgun.
Maruzen CA870 Charger NEW HOP
Maruzen CA870 Charger (Old Hop)
Optical Instruments
Red dot sight
ス コ ー プ
mount
Lucky Bag Series
model
ATI MINI AR-15 (M4A1 RIS) Metal Scale Model
ATI MINI .50 CAL Barrett M82 Metal Scale Model
4D MODEL M14 EBR
Survival game field introduction
Introducing Turf Battlefield
Yanex
Airsoft gun maintenance and customization considerations
CO2 gas blowback magazine analysis
Gas blowback operating mechanism
Rust prevention and treatment for iron (blackening)
Electrical system customization for electric airsoft guns
Customizing the drive system of an electric airsoft gun
Battery and charger related products
Hop packing, hop chamber custom
Tools used for customization (tools, measuring instruments, chronographs, etc.)
Kazubara Blog
Operator Profile
Mechanical Design for Beginners
Mechanical Materials Explained for Beginners
Mechanics of Materials Explained for Beginners
Tolerances Explained for Beginners
Mechanical drawings that even beginners can understand
Technology and lessons learned from the Comet plane crash
Engineer's Life Hacks & Casual Talk
Gadget reviews
This site features reviews and explanations of useful tools such as PCs, digital cameras, and smartphones.
A series of explanations on anything by a mechanical designer.
Kazubara, a former engine designer at Honda R&D (motorcycles), explains various things in the world from the perspective of a mechanical designer.
Current Events Topics
This blog, written by kazubara, explains topics that interest him from the perspectives of mechanical design and systems engineering.
Explanation related to generative AI
This site provides easy-to-understand explanations of news and mechanisms related to generative AI.
Global GX and Energy Technology Analysis
This book analyzes environmental policies, specifically GX (Geographical Exploration), and energy policies from the perspective of a mechanical designer, drawing on the author's experience.
Website operation related
This article introduces the website-related experience, knowledge, and skills gained from operating kazubara.net.
Systems Engineering (SE)
This category provides an introduction to systems engineering and helps you master its fundamentals.
Key points for job hunting as a mechanical engineer
Airsoft gun-related reviews and customizations
Air Electric Gun
Air Electric Gun
東京マルイ MP5K HC
Tokyo Marui HK416D DEVGRU
Tokyo Marui Next Generation Electric Gun URG-I SOPMOD BLOCK3
This is a review, disassembly, and customization guide for the Tokyo Marui Next Generation Electric Gun URG-I SOPMOD BLOCK3.
VFC HK416 CAG
VFC Mk18 mod.1 AEG
G&P XM177E1 AEG
KRYTAC KRISS VECTOR
LCT Electric Airsoft Gun AK-12
LCT AK74 NV
MAGPUL PTS masada
ICS Sportline M4 CQB Clear Color
G&G FN F2000 Tactical ETU AEG
G&G CM16 SRXL ETU
G&G CM16 LMG ETU
DMT AR15 Combat Lighter DMT-07
gas gun
BATON BG-17 CO2 GBB (Glock 17 GEN.5)
BATON BM-45 CO2 GBB 3rd Lot
LAYLAX SIG SAUER M17 (CO2)
KSC MK23 SOCOM Pistol CO2 ABS
KSC M9 HW system7
KSC Cz75 2nd HW system7
KSC AK74M system7 two
ACTIONARMY AAP-01 Assassin JP ver.
Tokyo Marui CQBR Block 1 GBB
Tokyo Marui Glock 17 GEN4
Tokyo Marui Glock 19 GEN3
Tokyo Marui CURVE Fixed Slide Gas Compact Carry Gun No. 4
東京マルイ デトニクス.45 コンバットマスター
This is a review and customization guide for the Tokyo Marui Detonics .45 Combat Master.
Tokyo Marui V10 Ultra Compact Silver
This is a review and customization guide for the Tokyo Marui V10 Ultra Compact Silver.
UMAREX/VFC G45 (Glock 45)
UMAREX/VFC HK VP9 (SFP9)
UMAREX/VFC GLOCK19X
WE SVD GBB Aluminum Receiver, Polymer Stock Version
Marushin Five-seveN CO2
Air Cocking
Tokyo Marui Air Revolver Pro SAA.45 Artillery 5 1/2 inch Black
This is a review, disassembly, and customization guide for the Tokyo Marui Air Revolver Pro SAA.45 Artillery 5 1/2 inch Black.
Tokyo Marui Colt M1911 Government HG Airsoft Gun
Tokyo Marui SOCOM MK23 HG
This is a review and customization guide for the Tokyo Marui SOCOM MK23 HG air cocking handgun.
Maruzen CA870 Charger NEW HOP
Maruzen CA870 Charger (Old Hop)
Optical Instruments
Red dot sight
ス コ ー プ
mount
Lucky Bag Series
model
ATI MINI AR-15 (M4A1 RIS) Metal Scale Model
ATI MINI .50 CAL Barrett M82 Metal Scale Model
4D MODEL M14 EBR
Survival game field introduction
Introducing Turf Battlefield
Yanex
Airsoft gun maintenance and customization considerations
CO2 gas blowback magazine analysis
Gas blowback operating mechanism
Rust prevention and treatment for iron (blackening)
Electrical system customization for electric airsoft guns
Customizing the drive system of an electric airsoft gun
Battery and charger related products
Hop packing, hop chamber custom
Tools used for customization (tools, measuring instruments, chronographs, etc.)
Home
Airsoft gun-related reviews and customizations
gas gun
gas gun
– Category –
Airsoft gun-related reviews and customizations
gas gun
Marushin Five-seveN CO2
UMAREX/VFC GLOCK19X
Tokyo Marui Glock 19 GEN3
KSC AK74M system7 two
WE SVD GBB Aluminum Receiver, Polymer Stock Version
Tokyo Marui Glock 17 GEN4
Tokyo Marui CQBR Block 1 GBB
UMAREX/VFC HK VP9 (SFP9)
ACTIONARMY AAP-01 Assassin JP ver.
KSC M9 HW system7
UMAREX/VFC G45 (Glock 45)
LAYLAX SIG SAUER M17 (CO2)
BATON BM-45 CO2 GBB 3rd Lot
BATON BG-17 CO2 GBB (Glock 17 GEN.5)
KSC Cz75 2nd HW system7
KSC MK23 SOCOM Pistol CO2 ABS
Tokyo Marui CURVE Fixed Slide Gas Compact Carry Gun No. 4
東京マルイ デトニクス.45 コンバットマスター
Tokyo Marui V10 Ultra Compact Silver
This is a review and customization guide for gas-powered airsoft guns.
Tokyo Marui V10 Ultra Compact Silver
Springfield Armory V10 Ultra Compact: A Real-Life Review
January 29, 2026
KSC Cz75 2nd HW system7
The evolution of the CZ75, hailed as the world's best combat auto, from its inception to the present day.
January 9, 2026
東京マルイ デトニクス.45 コンバットマスター
Tokyo Marui Detonics .45 Combat Master Assembly and Customization
April 6, 2025
東京マルイ デトニクス.45 コンバットマスター
Tokyo Marui Detonics .45 Combat Master Disassembly
April 2, 2025
東京マルイ デトニクス.45 コンバットマスター
Tokyo Marui Detonics .45 Combat Master Review
April 1, 2025
Tokyo Marui CURVE Fixed Slide Gas Compact Carry Gun No. 4
Customization and Mechanism of the Tokyo Marui CURVE Fixed Slide Gas Gun
February 4, 2025
1
2
3
...
11
Close
