If you have questions, do not use this product, and contact us for clarification.

CONTACT US

What ammunition should I use with my SMPX?

• You can use almost any factory ammunition that you want that is 9mm x 19 Parabellum on down as defined by NATO standards in size, velocity, energy, and pressure, and is the correct ammunition for the firearm.
• You can use standard velocity ammunition and still get subsonic results.

How long is the barrel?

• We use your provided barrel, which needs to be at least 6″ long. If you are going to Form 1 your MPX as an SBR, the barrel length should be listed as 6″.

What is the effective range?

• Your SMPX silencer gives you the same effective range of the Mp5 SD which is anywhere from 25-75 meters (up to 246ft).

Does the SMPX silencer void my firearm warranty?

• The SMPX is a barrel modification only and should not void your factory warranty. We recommend reaching out to the firearm manufacturer for their specific warranty information.

What is my silencer warranty?

• Your SMPX silencer has a limited 100% warranty and beyond. Warranty Information

What is the “beyond” part of my silencer warranty? 

The beyond services are for the original Grunt owner with an approved Form 4 tax stamp and LE Agencies on a Form 5 but with limitations. 

• Please view the FAQ tab below for warranty information.