War Hammer | Super Safety | Geissele | MP5 / MP5K + Variants

Due to an extremely high volume of orders and recent changes in supply chain capacity, lead times may take 30 days or more, depending on product demand. We appreciate your patience as we scale to meet this surge — thank you for your continued support!

NOT FOR SALE IN PROHIBITED ZIP CODES (CA, CT, DE, FL, HI, IA, IL, MA, MD, MN, NJ, NV, NY, RI, WA, WASHINGTON DC, PUERTO RICO). THIS WEBSTORE WILL AUTOMATICALLY REFUSE SALE OF THIS PRODUCT IF YOUR SHIPPING ADDRESS IS IN A ZIP CODE IN ONE OF THESE LOCATIONS. YOUR BILLING ADDRESS CAN BE IN A RESTRICTED ZIP CODE, BUT NOT THE SHIPPING ADDRESS.

War Hammer Super Safety with Geissele Trigger - MP5 Platform

Take your MP5’s performance to the next level with the War Hammer Super Safety, now offered with your choice of premium Geissele trigger. Engineered for precision and reliability, the Super Safety ensures smooth, positive engagement with an ergonomic design that provides rapid and consistent manipulation under any conditions.

Pairing it with a Geissele trigger of your choice delivers a truly customized setup—whether you prioritize crisp breaks, short resets, or duty-ready durability. Together, they create the ultimate upgrade package for shooters who demand the best in control, speed, and confidence.

Features:

War Hammer Super Safety – precision crafted, durable, and intuitive
Your choice of Geissele trigger for a personalized shooting experience
Enhanced ergonomics for faster, more reliable weapon manipulation
Built for serious shooters, professionals, and enthusiasts alike

Each kit includes:

Geissele modified trigger
Safety detent pin & spring
Two-piece super safety assembly
MP5 hammer & springs
Disconnector assembly
Pins
MP5 Trip

This allows you to build your MP5 setup from scratch! This is the Complete MP5 FCG, only thing needed is a forged lower, available here

Cam arm and drum are manufactured in USA from S7 tool grade steel. Post de-burring coated by impregnated ultra-high strength Nitriding process.

Parts are mechanically stress tested on both torque by 2-axis, as well as surface hardness, & impact rating (based on “MPA” Metric conditions/standards).

All components are hand gauged/caliper/micrometer verified prior to final packaging for shipment.

Tolerances are intentionally manufactured to guarantee inter-operability with every single “M4″/AR15 type of trigger pocket, with every major and medium sized manufacturers lower receivers TDP specifications.

Detent is also coated offering both protection as well as a “Ball bearing” like selector feedback & feel with ease of mode switching.

This has been tested in low shelf/M16 cut pocket as well to ensure full range of options.

Compatible with the following calibers in either “AR” pattern DI, Blowback, Roller Delay Blowback systems and several more in 9mm / 45acp/ 10mm /40-S&W / 5.7 / & HK pattern weapons (with correct subsequent components)

We’ve got units with over 7100 rounds on the one which has been tested side by side with another in a 308 gas gun with 4k+ and counting on that 2nd unit. These are Nitrided for additional hardness without embrittlement. Far superior to 99% of the others floating around out there.

Compatible with MIL-SPEC and Geissele semi-auto hammers, disconnectors, springs and pins.

Requires a full-auto bolt carrier and a low-shelf or full-auto pocket AR lower receiver. The buyer is responsible for ensuring compatibility. WE ARE NOT RESPONSIBLE FOR SNAPPED CAM LEVERS DUE TO HIGH-SHELF LOWER RECEIVERS. WARRANTY IS VOID IF NOT INSTALLED BY A COMPETENT GUNSMITH.

As seen here by our friend Garand Thumb

Warrantied for one year against defects by Warhammer Armaments.

See a video demonstration HERE.

See a YouTube review HERE.

See another YouTube review HERE.

Installation video can be seen HERE.

A video explaining why the War Hammer Trigger trimming geometry sets it above the rest from a legal standpoint can be seen HERE.

More information about this product can be seen HERE.

Need an H3 AR buffer to make your rifle run smoothly? You can get them HERE.

Make your AR hammer installation a snap with our AR Hammer Installation Tool, which is available HERE.

Need cam Inserts or centering blocks? You can get them HERE.

NOT FOR SALE IN PROHIBITED ZIP CODES (CA, CT, DE, FL, HI, IA, IL, MA, MD, MN, NJ, NY, RI, WA, WASHINGTON DC, PUERTO RICO). THIS WEBSTORE WILL AUTOMATICALLY REFUSE SALE OF THIS PRODUCT IF YOUR SHIPPING ADDRESS IS IN A ZIP CODE IN ONE OF THESE LOCATIONS. YOUR BILLING ADDRESS CAN BE IN A RESTRICTED ZIP CODE, BUT NOT THE SHIPPING ADDRESS.

What's Included

Specifications

MP5 Variant MP5 Standard MP5K

Geissele SSA G2S SD-C SD-E

$499.00 USD

Sale Sold out

Shipping calculated at checkout.

ITAR

ITAR COMPLIANCE AGREEMENT

I am a U.S. Citizen as defined in 22 CFR§ 120.15
I am purchasing the articles identified on the purchase order identified above for use or resale in the United States only.
- I understand that if the items are resold that it is my responsibility to advise the customer that the product is controlled for export by the appropriate U.S. Government Agency and that I am responsible to notify the customer if there are any export policy of denials associated with the product.
I understand that export authorization must be obtained from the Department of State before these items can be exported abroad or given to foreign persons in the United States.
I understand that, before applying for the appropriate export authorization that I must review and comply with any policy of denials associated with the items.
I understand that the products, technologies and services listed on the attached purchase order are subject to the export control laws and regulations of the U.S. Government and that they fall under the control jurisdiction of the Department of State’s International Traffic in Arms Regulations (ITAR).
I understand that it is unlawful to export, or attempt to export or otherwise transfer or sell any hardware or technical data or furnish any service to any foreign person (as defined in 22 CFR§ 120.16), whether abroad or in the United States, for which a license or written approval of the U.S. Government is required, without first obtaining the required license or written approval from the Department of the U.S. Government having jurisdiction.
I understand that I am responsible for compliance with any and all U.S. Government export controls and regulations and that, if I violate them, it could result upon conviction in severe criminal and civil penalties for my company and me.

ITAR COMPLIANCE AGREEMENT

I am a U.S. Citizen as defined in 22 CFR§ 120.15
I am purchasing the articles identified on the purchase order identified above for use or resale in the United States only.
- I understand that if the items are resold that it is my responsibility to advise the customer that the product is controlled for export by the appropriate U.S. Government Agency and that I am responsible to notify the customer if there are any export policy of denials associated with the product.
I understand that export authorization must be obtained from the Department of State before these items can be exported abroad or given to foreign persons in the United States.
I understand that, before applying for the appropriate export authorization that I must review and comply with any policy of denials associated with the items.
I understand that the products, technologies and services listed on the attached purchase order are subject to the export control laws and regulations of the U.S. Government and that they fall under the control jurisdiction of the Department of State’s International Traffic in Arms Regulations (ITAR).
I understand that it is unlawful to export, or attempt to export or otherwise transfer or sell any hardware or technical data or furnish any service to any foreign person (as defined in 22 CFR§ 120.16), whether abroad or in the United States, for which a license or written approval of the U.S. Government is required, without first obtaining the required license or written approval from the Department of the U.S. Government having jurisdiction.
I understand that I am responsible for compliance with any and all U.S. Government export controls and regulations and that, if I violate them, it could result upon conviction in severe criminal and civil penalties for my company and me.