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FAQ

Super Safety Basics

Approved WHA answers for Super Safety platform questions.
A Super Safety is a platform-specific trigger system designed for compatible firearm platforms. WHA offers Super Safety solutions for AR-15 and MP5-pattern firearms using platform-specific components and configurations.
No. A Super Safety and an FRT are different systems that operate differently. However, both are designed to achieve a similar result when installed on compatible platforms.
Super Safety systems utilize AR-15 fire control components. MP5-pattern firearms require a compatible lower designed to accept these components.
Yes, provided the trigger components have been properly modified for Super Safety operation. Standard Geissele trigger components are not drop-in compatible with Super Safety systems without the required modifications.
MP5K platforms operate at a significantly higher cyclic rate than full-size MP5 platforms. Due to the increased operating speed, Geissele trigger configurations are generally not recommended for MP5K applications.
COMPATIBILITY

MP5 Compatibility

Approved compatibility answers for MP5-pattern platforms.
No. Factory HK lower housings are not designed to accept AR-15 fire control components required for Super Safety systems.
Yes. The HK SP5 is compatible with a properly configured Super Safety setup using a compatible lower.
Yes. The SP5K can utilize a Super Safety with the proper compatible lower and components.
Yes. The AP5 is a compatible MP5-pattern platform.
Yes. The AP5-P is compatible when configured with the proper lower and components.
No. WHA Super Safety systems are not compatible with the MP5 .22LR platform.
No. The AP53 is a 5.56 platform and is not compatible with WHA MP5 Super Safety systems.
HK and PTR pattern firearms use different lower attachment interfaces. Selecting the correct pin pattern is important to ensure proper fitment of your lower. If you are unsure which pattern your firearm uses, please contact WHA before ordering.
COMPONENTS

WHA Lowers & Components

Approved answers for lowers, kits, hammers, and slip trips.
Yes. The MP5 Super Safety kit includes the WHA Gen 2 performance hammer.
A complete MP5 lower includes all required Super Safety components, including the MP5 slip trip, Gen 2 hammer, fire control components, and assembled lower housing.
The WHA lower is an in-house design utilizing Kevlar-carbon-fiber-infused polymer construction with steel reinforcement. It is designed to house AR-15 fire control components, the ejector lever, Super Safety cam, and related components without requiring shims or spacers.
No. The WHA lower was specifically designed to eliminate the need for shims and spacers.
A complete lower includes the lower housing, fire control components, Super Safety components, Gen 2 hammer, and MP5 slip trip assembled and ready for installation. A Super Safety kit contains the components needed to build your own compatible setup and may require additional parts depending on your configuration.
The MP5 slip trip is a required component used in MP5 Super Safety systems. It interfaces with the operating system of the firearm and is necessary for proper function.
Yes. Complete MP5 lowers include the MP5 slip trip and all required Super Safety components.
The Gen 2 hammer incorporates geometry changes intended to improve reliability and address issues encountered in certain MP5 platform configurations. If your current setup functions properly, upgrading may not be necessary.
The WHA lower was designed in-house to improve fitment, consistency, and reliability. It utilizes a Kevlar carbon-fiber infused polymer housing with steel reinforcement and eliminates the need for shims or spacers commonly required in some previous lower designs.
SUPPORT

Installation & Warranty

Approved installation and warranty answers.
Yes. WHA strongly recommends installation and inspection by a licensed gunsmith to ensure safe and reliable operation.
While some customers choose to install components themselves, WHA strongly recommends that they use a licensed gunsmith.
No. Parts damaged during installation by a non-professional are not covered under warranty.
Contact WHA Customer Support with your product information and a description of the issue. Additional information may be requested during the review process.
Please contact WHA Customer Support and provide details regarding the issue, your firearm configuration, and any relevant photographs. Depending on the situation, additional information may be requested to begin the review process.
ORDERS

Ordering & Shipping

Approved answers for shipping, FFL transfer, and inventory behavior.
No. WHA does not ship internationally.
No. Firearms and regulated components requiring transfer must be shipped to a licensed FFL.
Inventory is updated in real time. Available inventory may be purchased by another customer before checkout is completed.
PERFORMANCE

Break-In & Suppressor Use

Approved operational guidance for break-in and suppressor questions.
WHA recommends firing 600 rounds of SAAMI-specification 115-grain 9mm ammunition without a suppressor before changing ammunition types or operating configurations.
No. WHA recommends completing the break-in procedure before using a suppressor.
In many cases, yes. MP5-pattern firearms and clones often benefit from a different locking piece when running suppressed to improve reliability and operating characteristics. Because configurations vary, WHA recommends consulting a qualified gunsmith regarding your specific setup.
ARMORER

Troubleshooting

Approved routing guidance for fitment and troubleshooting questions.
If you experience fitment issues, malfunctions, compatibility questions, or troubleshooting concerns, WHA may recommend speaking directly with an Armorer to review your configuration.