A SAFER, MORE RELIABLE GUN STRING
All Guns Delivered to Wellsite Loaded & Armed By YJOT
All Assemblies 100% Built & Tested In Factory Setting
All Assemblies Delivered with Thread/Seal Bore Protection
Zero Components To Redress On Location
Most Environmentally Responsible Gun String Available
Minimizes Wellsite Labor Costs By Reducing Number Of Connections
A SAFER, MORE RELIABLE GUN STRING
All Guns Delivered to Wellsite Loaded & Armed By YJOT
All Assemblies 100% Built & Tested In Factory Setting
All Assemblies Delivered with Thread/Seal Bore Protection
Zero Components To Redress On Location
Most Environmentally Responsible Gun String Available
Minimizes Wellsite Labor Costs By Reducing Number Of Connections


MEET FIRST STRING™ WITH PULL & PLAY™ TECHNOLOGY
THE FIRST 100% MODULAR GUN STRING

FEMALE TOP SUB
• Factory Redressed
• 1 5/8″ Go Style Thread Screws Into CCL Or BRT
• O-Rings & Thread Protectors Installed
• Plunger Contact Assembly Installed
• Female Bottom Thread Screws Onto The Top Gun Tandem Sub
GUN ASSEMBLY
• Sub Pre-Installed On The Gun Body
• Poka-Yoke Enhanced, Factory-Built Assembly Techniques
• Delivers Fully Loaded and Armed with Pull & Play™ Technology Direct To The Wellsite
• Factory Assembled In Houston
• Available Gun System options – HALO™, Pull & Play™, Pre-Loaded Complete
PLUG SHOOT ASSEMBLY
• Plug Shoot Factory Assembled With Tandem Sub
• Factory Redressed & Armed With Ignitor
• Delivers with O-Rings & Thread Protectors Installed
• One-time Use Confirmed Set Module Assembled Using The Switch Of Your Choice
M1+ PLUG-SET COMBO
• Patent-Pending Adapterless Setting Tool Connected to an M1™ Plug – Only Plug-Set Combo On The Market That Does Not Require An Adapter Kit.
• No Unsafe Disassembly & Installation Of Adapter Kit On Location
• Delivers With Dual-Sided Power Cartridge & Thread Protectors Installed
• Dual-Sided Power Cartridge Eliminates Mis-Runs Due To Power Cartridge Being Loaded Backward (coming soon)

WHY FIRST STRING™?
• All Assemblies 100% Built & Tested In Factory Setting
• Design-Reinforced Poka-Yokes For Manufacturing & Assembly
• Fully Loaded and Armed, Delivered To The Wellsite Ready To Assemble
• All Assemblies Delivered with Thread/Seal Bore Protection
• Zero Components To Redress On Location
• Built With Switch & Charge Of Your Choice
• One-Way Orientation For Top Sub, Gun, Plug Shoot, and M1+ Combo
• Most Environmentally Responsible Gun On The Market

MEET FIRST STRING™ WITH PULL & PLAY™ TECHNOLOGY
THE FIRST 100% MODULAR GUN STRING

WHY FIRST STRING™?
• All Assemblies 100% Built & Tested In Factory Setting
• Design-reinforced Poka-Yokes For Manufacturing & Assembly
• Fully Loaded and Armed, Delivered To The Wellsite Ready To Assemble
• All Assemblies Delivered with Thread/Seal Bore Protection
• Zero Components To Redress On Location
• Built With Switch & Charge Of Your Choice
• One-Way Orientation For Top Sub, Gun, Plug Shoot, and M1+ Combo
• Most Environmentally Responsible Gun On The Market
FEMALE TOP SUB
• Factory Redressed
• 1 5/8″ Go Style Thread Screws Into CCL Or BRT
• O-Rings & Thread Protectors Installed
• Plunger Contact Assembly Installed
• Female Bottom Thread Screws Onto The Top Gun Tandem Sub
GUN ASSEMBLY
• Sub Pre-Installed On The Gun Body
• Poka-Yoke Enhanced, Factory-Built Assembly Techniques
• Delivers Fully Loaded and Armed with Pull & Play™ Technology Direct To The Wellsite
• Factory Assembled In Houston
PLUG SHOOT ASSEMBLY
• Plug Shoot Firing Head Factory Assembled With Tandem Sub
• Factory Redressed And Armed With Ignitor
• Delivers with O-Rings & Thread Protectors Installed
• One-time Use Confirmed Set Module Assembled Using The Switch Of Your Choice
M1+ PLUG-SET COMBO
• Patent-Pending Adapterless Setting Tool Connected to an M1™ Plug – Only Plug-Set Combo On The Market That Does Not Require An Adapter Kit.
• No Unsafe Disassembly & Installation Of An Adapter Kit On Location
• Delivers With Dual-Sided Power Cartridge & Thread Protectors Installed
• Dual-Sided Power Cartridge Eliminates Mis-Runs Due To Power Cartridge Being Loaded Backward (coming soon)






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© 2022 G&H Diversified Manufacturing, L.P. All rights reserved. All information and product design and availability is subject to change or correction at any time. Terms, conditions, representations and warranties shall be in accordance with G&H standard agreement or specific purchase order, etc. Access information and digital cookies, crumbs, pixels and similar technology is used for improved site access and marketing purposes. Only lawful access and use of this site is permitted.
Trademark Notice. G&H, the G&H logo, Yellow Jacket, the Yellow Jacket Logo, the Flame-Winged Hornet image, M1, HALO, First String, Pull & Play, DSS, POP-N-LOK, along with taglines and slogans as presented in this medium of expression are the exclusive trademarks, service marks, logos and intellectual property of G&H Diversified Manufacturing, LP. All rights reserved.
© 2022 G&H Diversified Manufacturing, L.P. All rights reserved. All information and product design and availability is subject to change or correction at any time. Terms, conditions, representations and warranties shall be in accordance with G&H standard agreement or specific purchase order, etc. Access information and digital cookies, crumbs, pixels and similar technology is used for improved site access and marketing purposes. Only lawful access and use of this site is permitted.