MP5 Super Safety Complete Polymer Lower Assembly – Radiata Design Victrix

Please read the description below carefully. 99.9% of the questions we receive are answered below. Yes, there is much information and yes, you’ll be tempted to gloss over it.

We assure you that it’s all there. We’ve been updating this as questions come in.

If you need an Full Size Push Pin Front variant, you can get the excellent Polymer Pew lower HERE.

THE WAIT TIME FOR THESE IS VERY SHORT DUE TO THE SELECTIVE LASER SINTERING (SLS) PROCESS USED AND SIMPLE ASSEMBLY-FOCUSED DESIGN.

AN EXPLANATION OF THE POLYMER SLS PROCESS CAN BE SEEN HERE.

THIS IS A “MADE-TO-ORDER” PURCHASE IN LIEU OF A “PREORDER” PURCHASE.

DELIVERY TIMES WILL BE LESS THAN THREE WEEKS FOR THESE AS A RESULT.

We have joined with Radiata Design and War Hammer Armaments to offer these premium and complete MP5 lower assemblies that include the following:

• Radiata Lower Receiver of your choice. These lowers are strikingly similar to HK polymer lowers in fit, finish and high quality appearance.
• War Hammer Armaments Super Safety, Polished and Black Oxided Steel Slip Trip and CNC machined/hand polished Gen 2.0 Hammer.

TO BE VERY CLEAR, THE SLIP TRIP IS INCLUDED IN THIS KIT. YOU DO NOT NEED TO BUY ONE SEPARATELY.

BECAUSE SOMEONE OUT THERE FAILED TO SEE THE ABOVE STATEMENT, WE REITERATE AGAIN THAT THE SLIP TRIP IS INCLUDED IN THIS KIT. YOU DO NOT NEED TO BUY ONE SEPARATELY.

Victrix Lower Receiver Key Features:

• The Radiata Victrix Lower Receiver is precision engineered in Texas from advanced composite materials and built to perform under real-world conditions.
• Designed as a true drop-in fit for full-size MP5-pattern systems, it delivers the strength, consistency, and performance you expect for your gear.
• MP5 clones with the Front Pin configuration will NOT use the front pin to attach these, as they engage the adjacent shelf feature. AS A RESULT, THERE ARE NO FRONT PIN HOLES ON ANY OF THE LOWER RECEIVER VARIANTS.
• Advanced Composite Construction – built from high-grade composite material engineered for rigidity, heat stability, and chemical resistance without added weight.
• Reinforced Stainless-Steel Internals – precision-fitted components ensure consistent performance and durability under sustained use and high round counts.
• Rotary-Safety Ready – able to accept ambidextrous 3-position rotary safeties.
  Note: Please consult the safety manufacturer before installation. Modifying the VICTRIX may void the warranty.
• True Drop-In Installation – installs directly with no gunsmithing or fitment required, delivering a precise interface to your existing platform.
• Quality-Controlled & Texas-Built – proudly designed, assembled, and inspected in the USA under strict dimensional and performance standards.
• Warranty – backed by a 1-year limited warranty against manufacturing defects.

All brand names are mentioned only for fitment and compatibility. Radiata Inc. and Warren Innovative Technologies, LLC are not affiliated with or endorsed by those manufacturers.

The materials and processes that go into the War Hammer Armaments Super Safety, Slip Trip and Gen 2.0 MP5 cut hammer set this kit apart from the rest.

NOTE: War Hammer Armaments does not warranty its slip trip when used in the MAC5 series of weapons. They highly recommend avoiding them, as they are consistently out of spec by as much as 300% of the maximum tolerance the MP5 calls for in its manufacturing data/tolerances and points of weldment. If you do use one, we highly recommend grinding out the denial block along the slip trip pathway to avoid mechanical interference.

WE WILL BE WORKING DIRECTLY WITH RADIATA DESIGN AND WAR HAMMER ARMAMENTS TO GET THESE TO YOU AS QUICKLY AS POSSIBLE.

WE ANTICIPATE A THREE WEEK LEAD TIME DUE TO AN INHERENTLY STREAMLINED SUPPLY CHAIN.

THE INCLUDED TRIGGER CAN BE SEEN HERE AND THE INCLUDED GEN 2.0 HAMMER CAN BE SEEN HERE.

THE WAR HAMMER ARMAMENTS GEN 2.0 MP5 HAMMER’S CNC MACHINED PRECLUDES THE NEED FOR A POLYMER BUFFER TUBE ON THE MAIN ACTION SPRING TO FUNCTION.

THE DELAYED ROLLER ACTION THEREFORE FUNCTIONS AS GOD INTENDED.

We assemble these and ship them to you ready to go.

The included pistol grip is the excellent Forward Controls Design GSA Grip A1, made under FCD license by Radiata Design.

APPLY OIL OR GREASE AS YOU PREFER PRIOR TO USE.

Details on the War Hammer Armaments Super Safety Kit (including the included MILSPEC trigger) can be seen HERE.

Details on the War Hammer Armaments MP5 Gen 2.0 Hammer can be seen HERE.

Here is a complete instructional video:

It transfers bolt carrier motion into the cam arm lever to make the super safety function.

Geissele triggers with CNC machined and hand-polished hammers may be available for these in the future.

If you have questions about this product, you can contact us HERE.

NOT FOR SALE IN PROHIBITED ZIP CODES (CA, CT, DE, FL, HI, 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.

NOTE: THIS IS A MADE-TO-ORDER PURCHASE THAT WILL DETERMINE WHICH VARIANT(S) YOU NEED AND WILL ALSO RESERVE YOUR PLACE IN LINE.

THE PARTS WE USE IN THESE COMPLETE ASSEMBLIES ARE OF THE HIGHEST QUALITY IN DESIGN, MATERIALS, FINISHES, PROCESSES AND MANUFACTURE.

IN OTHER WORDS, WE DO THESE BETTER THAN ANYONE:

POLYMER LOWER RECEIVER

SUPER SAFETY

SLIP TRIP

GEN 2.0 MP5 HAMMER

IF YOU HAVE ANY QUESTIONS, PLEASE READ EVERYTHING ABOVE AGAIN CAREFULLY. IT ANSWERS LITERALLY EVERY QUESTION THAT HAS BEEN ASKED.

Here are several helpful videos that show you how to set up your parts:

https://warhammerarms.net/ss-install-faq/