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MFI (LONG) BARREL EXTENSION FOR AK-74 SU / AK74 / KRINKOV 922r Compliant / Discontinued

Designed specifically to fit the AK74SU Krink (Krinkov).


Not Available
Availability: Discontinued
Shipping: 1st Class Mail rate is actually the price for USPS Priority.
Pricing: $105.00


MFI Adapter for M4 and or SOCOM Style Fake Silencer (HK USC Length) Fits 24mm Right Hand AK 74 SU Krinkov:

This page is ONLY for the ADAPTER / BARREL EXTENSION seen as "A" in the photo above.

You may also order (at an additional cost) the M4 and or SOCOM Fake Silencer that slides over the top of the ADAPTER via the "OPTIONS" tab.

Item "B" = M4 Fake Silencer for HK USC 45 (Blank / No Markings)


Item "C" SOCOM Fake Silencer for HK USC 45.

The "OPTIONS" tab gives you Special Discounts on BOTH of these items. Regular Retail Prices for either is $175.00.

This AK74SU adapter is weapons grade steel. The length is 258.5mm / 10.15 inches, which if permanently attached will give you about 16.50" of barrel. This added length will give you the much needed barrel length to make a 100% BATF legal rifle.

So now you can turn your K-VAR AK 74 SU parts set into a legal semi rifle. This will fit any Bulgarian, Russian, etc weapon with a 24mm Right Hand Thread. The internal hole diameter that the bullet passes through is 0.610" in diameter. We made this large enough to keep the escaping gases from affecting the bullet trajectory. The larger hole size also helps keep the weight down. In the end this is much lighter than the long 16' barrel version by K-VAR.

If you have the 16" barrel from KVAR you can also use this item, as it slides over the 16" thin pencil barrel as well, hiding the entire barrel.

We deliberately made this adapter / barrel extension out of steel so it can easily be blind pinned and welded to meet BATF permanently attached criteria.

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

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

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


  • 1 - Adapter / Barrel Extension ONLY

All MFI Barrel Shrouds / Fake Silencer / Mock Suppressors 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.


In accordance with the Joe Biden & Beto O’Rourke directive I personally as well my company no longer own(s) or possess any firearms or ammunition. This includes but is not limited to: Handguns, Pistols, Shotguns, Rifles, NFA items, Hog Legs, Fire Sticks, Smoke Poles and or Thunder Clubs.

All firearms that appear on our web site, regardless of what is written about them, are not owned by the company nor possessed by anyone associated with MFI and may even be CGI / PhotoShop.

Therefore regardless of any new firearms laws / taxes, no probable cause can EVER be assumed on any property (stationary or mobile) owed by myself or MFI.

AGAIN: We are 100% in compliance with any possible new “Biden / O’Rourke Public Safety Act” and therefore NO PROBABLE CAUSE could ever be assumed.

Lastly anyone arriving with a warrant of any kind will be assumed to be an IMPOSTER with intent on murdering us and will be treated as such without warning.

Those invading our territory may receive serious and even fatal wounds from rusty blades, clubs with bent nails, spear tips, arrows and or crossbow bolts.


  • 100% Made in the USA!
  • Made of Weapons Grade Steel.
  • Precision CNC machined from billet.
  • Fits ONLY a 24mm Right Hand Thread.
  • Maximum Outer Diameter (Long Part): = 20.40mm or 0.810 inches.
  • Maximum Internal Diameter: = 15.10mm or 0.595 inches.
  • Maximum Length: = 259mm or 10.20 inches.
  • Length From Barrel Nut Forward: = 228.64mm or 9.00 inches.
  • Weight: 11.4 ounces or 325 grams! (Adapter Only NOT Shroud)
  • Mil. Spec. Black Oxide to give the unit a semi flat finish.
  • 922r Compliant (On this first run the "MFI USA" marking is hand engraved with electric pencil.)
No FFL needed, No Special License, No Permit Required & No Special Tax Stamp needed to order.

NOTE: These do NOT suppress sound in any way and are 100% legal for the regular civilian to own in all 50 US States.

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


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.


  • MFI
  • Discontinued
  • New


Shipping Information

  • Item Requires Shipping
  • 0.7 lbs.
  • SHIPPING IS INCLUDED VIA USPS on orders over $82.00 Dollars AND OR If S&H is INCLUDED in the Title / Discription.

  • 1st Class Mail rate is actually the price for USPS Priority.

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