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3.875" Long Lug MFI HK G28 DMR Style Muzzle Brake / Barrel Extension for HK G3 Clone PTR91 / HK MR762 / AR10 in .308 or 300 Blackout or any weapon with 5/8 X 24 thread to get to Ca OAL 30" or MD OAL 29" or a Featureless Ca. Semiautomatic Rifle.

MB-G28-5/8X24-RH-LUG-308
Designed specifically to fit the any weapon with this specific thread pattern to simulate the look of the HK / Heckler & Koch G28 Style Weapons Platform / HK DMR.

USA Flag THIS PRODUCT IS MADE IN THE USA. USA Flag

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Description

3.875" Long Lug MFI HK G28 DMR Style Muzzle Brake / Barrel Extension for HK G3 Clone PTR91 / HK MR762 / AR10 in .308 or 300 Blackout with 16" Barrel or any weapon with 5/8 X 24 thread to get to Ca OAL 30" or MD OAL 29" or a Featureless Ca. Semiautomatic Rifle. WARNING: Use only with .308 or smaller bullets.

WARNING: The Exit Hole necks down to 0.348". Use only with .308 or smaller bullets.


California Department of Justice's is deliberately ambiguous on all its definitions. This requires us to read carefully their requirements and comply as best as we can. After reading all the available regulations and definitions we have come to the conclusion that our NEW G28 Muzzle Brakes when installed correctly will comply with the current CA DOJ regulations and definitions as "Muzzle Brakes" and NOT "Flash Suppressors” as our "Muzzle Brakes" operate as follows:

  • This particular MFI G28 Muzzle Brake does NOT reduce the amount of flash discharged from the firearm.
  • This particular MFI G28 Muzzle Brake does NOT redirect the flash discharged from the firearm away from the field of view of the shooter.
  • This particular MFI G28 Muzzle Brake DOES IN FACT REDIRECT the flash that normally would be discharged downward from firearm's muzzle UPWARDS INTO THE SHOOTER'S FIELD OF VISION as there are no slots / holes / openings at the bottom of this product, like those normally found on a flash suppressor.
  • This particular MFI G28 Muzzle Brake DOES IN FACT REDIRECT the flash that normally would be discharged forward from firearm's muzzle UPWARDS INTO THE SHOOTER'S FIELD OF VISION as there is a neck down in diameter of the exit hole which forces the flash / gases backward and out the slots in the top of the product.
  • This particular MFI G28 Muzzle Brake is SOLELY MARKETED as a "Muzzle Brake" which provides anti-recoil and downward thrust / anti muzzle climb due to its physical characteristics.
  • This particular MFI G28 Muzzle Brake also conforms with the definition of a "Muzzle Brake" according to the CALGUNS flow chart.

Do not take our word for it... Read the Regs yourself... This is the closest thing we can find on current regulations.

https://d3uwh8jpzww49g.cloudfront.net/sharedmedia/1509343/12-30-doj-proposed-assault-weapons-regulations.pdf

Page #4 ® covers the definition of a "Flash Suppressor".

Page #4 (x) covers Overall Length, how it is measured and alludes to the Muzzle Brake needing to be permanently attached.

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We have added "Simulated Lugs" the type found on the new HK DMR G28 rifles and seen at SHOT SHOW 2016 in the HK Booth. I say "Simulated" as we only made an exact copy for the 15mm short 3.875 version. The real / correct Lugs have 2 that are the same and one that is taller. I felt this was a distraction and choose to make the 3 lugs 100% symmetrical. The primary reason being cosmetic, but as no one at HK could tell us what device these lugs mated with, it appeared to also be pointless.

This Version of the MFI HK G28 Muzzle Brake is specifically made for the California and Maryland Markets to meet the California DOJ & MD minimum overall length of 30" or 29" for the AR10 in .308 or 300 Blackout and to qualify as a Featureless Ca. Semiautomatic Rifle.

This item will fit ANY BARREL with a 5/8 X 24 Thread.

Unlike our other products this item is specifically for a VERY LIMITED MARKET and as such is made in very small volumes. Normal production for any other item is 1000 per year minimum. So it goes without saying we have to charge more money for these. We do our best to keep the price down for our valued CA customers. Support the USA and "Buy American" and support all the California based firearms companies and "Buy from a California Dealer or Manufacturer."


  • Simulated Lugs the type found on the new HK DMR G28 rifles.
  • 100% Made in the USA!
  • The made of Weapons Grade Steel.
  • Heat Treated to about Rockwell 30. .
  • Precision CNC machined from billet.
  • Threaded 5/8 X 24 tpi Right Hand
  • Maximum Length: = 98.6mm or 3.875 inches.
  • Maximum Barrel Extension: = 83.6mm or 3.350 inches.
  • Maximum I.D. @ 0.465"
  • Weight: 5.2 ounces!
  • 3 - Exhaust Slots venting upward only.
  • Anti-Recoil Attributes
  • Anti-Climb Attributes
  • Exit Hole I.D. @ 0.348"
  • Mil. Spec. Deep, Deep Gray (near black) Phosphate Parkerized to give the unit a semi matt finish. The Photo has been lightened to show detail and profile.


NOTE: Even though the overall length of this item is 3.875" part of that is the threads. As you can only count the threaded area once (threads in the product cover the threads on the barrel) so the total ADDED LENGTH to any weapons system's barrel would be about 3.350".


This item fits any weapon with a 5/8 X 24 threads WITHOUT ANY MODIFICATION. You do however need to remove the existing Flash Suppressor / Flash Hider / Muzzle Device.


This item WILL REQUIRE a crush washer in order to time the slots to the top for maximum Muzzle Brake Effect. We do NOT sell or provide crush washers. You can reuse the one from your barrel or buy them on-line.


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


Muzzle Brakes are also known as and confused with: Flash Suppressor, Flash Hider, Flash Hinder & Anti Climb Device. This however we classify as a MUZZLE BRAKE.

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

So if you are looking at doing a "Featureless Rifle" using a MFI G28 Muzzle Brake should be in compliance with the Letter and Spirit of the law.

The MFI Barrel Extension / Muzzle Brake 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.

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

Restrictions

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
  • 0.3 lbs.
  • $1.89

Customer Reviews

Comment Total Reviews (1)

So friggin cool!
  • Currently 5/5 Stars

Reviewed by: Al05/06/2017 06:45PM

Product ownership: Less than 1 month

Purchased from: MFIAP.COM

Comments:
I bought one of these for my AR10 / HK G28 Clone look-a-like build and it is 100% PERFECT! Fantastic CNC machining and beautiful dark gray parkerizing. Far better than I had hoped for and what a deal at $70.00!! Best of all... I ordered it on Monday at 10am NC time and it arrived on Wednesday! Spoke with the owner as well to tell him how please I was. Really nice to speak to a real person who knows everything about a product they sell. I guess he should as he said he was a one man operation. Out Standing in every way!!

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