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(SUPER SALE) MFI M4 HK USC45 Kampfswimmer Marked Fake Silencer (Price Includes S&H Via Priority Mail and Insurance.)

Designed specifically to fit the HK USC-45 Carbine (UMP).


Limited Supply: only 3 remaining
Was: $175.00
Sale: $98.00
Save: 44%
Save: $77.00

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SHIPPING IS INCLUDED VIA USPS on orders over $82.00 Dollars


Fake Silencers are also known as: Dummy Can, Faux Suppressor, Mock Silencer, Barrel Shroud & Non Functional Sound Suppressor.

These are designed for LIVE FIRING.

We test all our Fake Silencers to be 100% sure that they function shot after shot without any problems.

This Version of the MFI HK USC-45 M4 Fake Silencer is Marked with the Logo of the "KaMPFSWIMMER". The Kampfswimmers are the Ultra Elite Combat Swimmers / Frogmen of the German Special Forces. Kampfswimmer Unit 3402 is the equivalent of the US NAVY SEALs.

MFI M4 Style Fake Silencer for HK USC45 with & without the Barrel Shroud in place.

This product fits ONLY the HK USC 45.

MFI M4 Style Fake Silencer for HK USC45 with Kampfswimmer German GSG5 Special Forces Marking

The above photos shows the MFI M4 Fake Silencer for the Heckler and Koch (HK) USC45 Carbine to give the look of a suppressed H&K UMP 45 submachine gun.

MFI has produced a legal version of the M4 Knights Armament Silencer (to meet current BATF specifications for a Fake Silencer / Non-Functional / Cosmetic Only ) here in the USA. MFI has been a Class II BAFT 07 Manufacturer + SOT & a DOD / Military Contractor so we have access to the real thing here to take measurements off of to assure as close a match as possible. The only areas where we deviate from the original in, is that the Depth of the holes are deeper to reduce weight and add a greater 3D effect and the lettering is changed slightly so as not to violate Knights Armament Intellectual Property Rights.

No FFL needed, No Special License, No Permit Required & No Special Tax Stamp needed to order.

All MFI Barrel Shrouds / Fake Silencer / Mock Suppressors / Faux Silencers are 100% Cosmetic & have ZERO Function. Unlike true vented barrel shrouds / heat shields our products make NO CLAIM to any protection from heat that is generated from the barrel. As you fire, your barrel will heat up and that heat is directly transferred to the MFI Product. Therefore you should NEVER grab hold of the MFI Product if you have fired more than 5 rounds, as you WILL burn your hands.

The MFI M4 & SOCOM Style Fake Silencers do NOT reduce muzzle noise or muzzle flash in any way. So these are to the best of our knowledge 100% legal for the regular civilian to own in all 50 US States.

Obviously it would be impossible for any manufacturer to know every law / regulation / ordinance of every Country, State, County, City or Town on the planet. For this reason you the customer are required to research this issue to be sure you are within the laws of your specific location.

MFI is NOT liable for any item purchased that violates any law(s) or regulation(s) anywhere on the planet.

One would think that common sense would be a good guide line for any issue, but as the US Federal Government lacks any sense of this we are forced to make statements like this.

When MFI is informed of a State's, County's, City's or Town's specific law / regulation / ordinance we will post it here for all to see. We require a copy of the exact wording to verify the validity of the claim.


  • Patented Design.
  • 100% Made in the USA!
  • Designed for LIVE FIRE.
  • The main body is made of 6061-T6 AIRCRAFT GRADE ALUMINUM.
  • Precision CNC machined from billet.
  • Lettering is INDEXABLE / ADJUSTABLE in position.
  • Fits only H&K USC 45 Carbine.
  • Maximum Outer Diameter: = 37.9mm or 1.495 inches.
  • Maximum Inner Diameter: = 20.70mm or 0.815 inches.
  • Maximum Length: = 235mm or 9.25 inches.
  • Weight: 11.2 ounces or 320 grams!
  • Mil. Spec. Acid Etched (anti-glare)
  • Mil. Spec. Anodized to give the unit a semi flat finish.
  • Professionally Laser Engraved.
  • Available UNMARKED so that you can have your engraver mark it any way you like.

The MFI M4 Style Fake Silencer does NOT reduce muzzle noise or muzzle flash in any way. So these are 100% legal for the regular civilian to own in all 50 US States.

The HK USC45 M4 Fake Silencer / Barrel Shroud fits the H&K USC-45 Carbines WITHOUT ANY MODIFICATION.

This accessory does NOT affect the accuracy of the weapon in any way.

The HK USC 45 M4 Fake Silencer slides over your barrel and is held on by 4 nylon tipped set screws. The nylon tipped set screws will not dent your barrel as much as the steel tipped set screws do. This is High Temperature Nylon so they will NOT melt. If you want steel tipped set screws all you have to do is pull the nylon tips off.

Sliding anything over your barrel or using any type of set screw WILL leave a mark. If your are worried about marking or scratching your barrel, this product is NOT for you.

You can index / position the laser engraving any where you like as the rotation of the outer body is stabilized / stopped by the set screws that makes contact with the hidden barrel.


This item is NOT RESTRICTED FOR DOMESTIC US SALES in any way and we offer DOMESTIC USA shipping to ANYONE. We ship to all 50 US States as well as all US Territories i.e. Guam & Puerto Rico. Sorry we can NOT ship to ANY APO address regardless of actual location.

This item is 100% RESTRICTED FOR EXPORT OUTSIDE THE USA. The US Department of State regulates / restricts this product and it is NOT EXPORTABLE outside the USA even to LE, Governments or Military without State Department approval.

This approval is AVAILABLE through MFI as we are an ITAR / Dept. of State Registrant with the Directorate of Defense and Trade Controls Office. We can obtain a US State Dept. Export License for you.

Please feel free to contact us if you have any questions on this issue.

Shipping Information

  • Item Requires Shipping
  • 1.0 lbs.
  • SHIPPING IS INCLUDED VIA USPS on orders over $82.00 Dollars

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