THE VEPR FORUM

Atterete Dominatum
It is currently Tue Oct 16, 2018 10:21 pm

All times are UTC




Post new topic Reply to topic  [ 52 posts ]  Go to page 1, 2, 3, 4, 5, 6  Next
Author Message
PostPosted: Sat Jan 19, 2013 11:54 am 
Offline
User avatar

Joined: Fri Sep 28, 2012 8:46 pm
Posts: 188
Common Russian Muzzle Attachments for Saiga-12/Vepr-12 Review

Short review of different muzzle attachments, that are used with Vepr-12/Saiga-12 and some other shotguns by Russian shooters.

The muzzle attachments in the review: Flash hiders (FH), Muzzle Brakes (MB), Compensators (C), Muzzle Brake-compensators (MBC), chokes & paradox (Chokes).

Efimov design MBC

The most common MBC in Russia are models based on the same idea, now well known as "Polygon Muzzle Brake-compensator", that was suggested by Russian IPSC shooter Efimov Eugeny. His device has two cambers: first one works as Muzzle Brake, second one as Compensator. Molot Chief Constructor Mr. Sergey Urzhumtsev told me that first dosen of them was made by Molot and one still used during test-shootings. Then production of Efimov design Muzzle brake-compensator was moved to "Polygon" LLC in Chelyabinsk, and became known as "Polygon MBC".

Pics of Original Efimov MBC for Saiga-12/Saga-20 made by Polygon

Image

Image

The pics of Original Efimov MBC, that was modified by Vsevolod Ilyn. He added the additional holes for Up and Right compensation + increased the window in the second chamber for more Up compensation.

Image

Image


Later "Guns Tuning Laboratories" started to make their own version of MBC based Original Efimov MBC (Polygon). I talked to the owner & Technical Director of "Guns Tuning Laboratories" about their PSH-2 several years ago. Their main business is to repair Trucks engines & transmissions, making Muzzle-brakes is a kind of hobby due to the Owner has Saiga-12 and likes shooting. They told that "Polygon" design was taken for their PSH-2 but they used Computer based Math models for the Hot Gases for their design, they recalculated the volumes of the first and the second chambers, increased the "window" in the second chamber & improved the "gills" as in number as in geometry making them like nozzles. As everybody knows, nozzle are more effective then standard outlet.

The pic of Guns Tuning Laboratories PSH-2

Image

Image


Image


The pic of Guns Tuning Laboratories PSH-4-S-12-MR

Image

Image

Image

The same time Eugeny Efimov improved his own design, adding a couple of gills in the first chamber, and redesigned the second one splitting it for tree compensation chambers. Here is the pic of Improved Efimov MBC with 4 chambers.

Image


Ilyn design MBC

One of the best MBC on the market based Efimov MBC is GK-01, designed by Vsevolod Ilyn.

This Muzzle Brake-compensator does not have a completely new design, but has the most improved "Polygon MBC" design, like Russian T-34 tank is the most improved version of American Christy tank. Using his huge IPSC practice experience for his design, Ilyn used first chamber of Polygon adding 10 similar to PSH-2 MBC or Improved Efimov MBC instead of 8 on "Polygon MBC" & redesign himself the second chamber of "Polygon MBC", that now has a completely new design. He also switched from Steel, that is used for making "Polygon MBC" & "PHS MBC" to Aluminum for his GK-01.

Ilyn MBC GK-01 now are made in Russia in cooperation with Vsevolod Ilyn by Molot, Molot Arms, IZHMASH, and in US by CSS, as well as, NoName in China - without. Molot Arms, as well as, IZMASH use D16T Al alloy rods for making their GK-01, Molot , before making their GK-01, prepare Al D16T for production forging Aliminium pigs, as forged aluminium wheels maker do for changing a structure of metal and increasing its safety factor. Now this MBC is well known in US as "Molot GK-01 muzzle brake/ Molot brake", and in Russia as "Ilyn Muzzle Brake-compensator".

The pic of Custom Ti Ilyn MBC GK-01 made by Molot

Image

The pic of Ilyn MBC GK-01 made by Molot Arms (Al D16T)

Image

The pic of Ilyn MBC GK-01 made by IZHMASH (Al D16T)

Image

There are some other models of MBC based on Efimov MBC on the market in Russia, here are pics of some of them.

The pics of MBC designed & made by "Cheaply"

Image

Image

Image

JP design MB

There are some models based on JP MB. This are "pure" muzzle brake. The pics of JP adapted for Vepr-12/Saiga-12.

Image

Image

Image

Image

Image

Image

Image

Image

Image

The pic of JP MB that was modified by Vsevolod Ilyn for working as MBC. On this pic is also Efimov MBC modified by Ilyn and Compensator for Vepr-12.

Image

Various design MBC

The pics of MBC designed by WILD

Image

Image

Image

Image

Image

The pics of Compensator ( C ) based on Fabarm design

Image

The pics of MBC designed by Ascer

Image

The pic of Mossberg Road Blocker MB similar to Barrett .50 MB that is used by Jerry Mickulek on his shotgun. IMHO this MB can be adapted for Vepr-12 as JP.

Image

Image

The pic of MB based on idea that used by Mosberg and Barrett, and modified by Russian shooters, making MBC instead of pure MB.

Image

There are some pics of compensators that are used with Saiga-12/Vepr-12

Image

Image

Image

Image

Various MB, MBC & C for Saiga-12/Vepr-12

Image

Image

Various of FH & Chokes for Saiga-12/Vepr-12

There are pics of some FH & Chokes, that are used in Russia with Saiga-12/Vepr-12

Pics of various of FH & Chokes made by Molot & IZMASH on Grizliks Vepr-12 VPO-205-03

Image

Image

Pics of paradox for Vepr-12/Saiga-12 made by Molot

Image

Image

Image

Pics of paradox for Vepr-12/Saiga-12 made by IZHMASH

Image

Image



to be continued....

_________________
В ЧЕМ СИЛА, БРАТ? Сила в правде! ©

Image


Last edited by PapaZorro on Sun Mar 31, 2013 8:17 pm, edited 2 times in total.

Top
 Profile  
 
PostPosted: Tue Mar 12, 2013 9:00 pm 
Offline

Joined: Mon Sep 24, 2012 1:38 am
Posts: 121
Interesting stuff, looking forward to the next one. What muzzle device do you use? I'm assuming you've tried a few.

_________________
Image


Top
 Profile  
 
PostPosted: Wed Mar 13, 2013 3:31 am 
Offline
Business Member
User avatar

Joined: Tue Sep 25, 2012 10:43 pm
Posts: 3024
Location: Yulee, Florida
bigj480 wrote:
Interesting stuff, looking forward to the next one. What muzzle device do you use? I'm assuming you've tried a few.

I think his go-to muzzle device might be the GK-01. I know I love mine ;)

evl....

_________________
Image
DIRECT ALL WORK INQUIRIES TO...
evl@evlutionz.com


Top
 Profile  
 
PostPosted: Tue Mar 19, 2013 1:29 pm 
Offline
User avatar

Joined: Fri Sep 28, 2012 8:46 pm
Posts: 188
bigj480 wrote:
Interesting stuff, looking forward to the next one. What muzzle device do you use? I'm assuming you've tried a few.

I use Original Molot GK-01 and PSH-2 MBC, short 70 mm Molot Chokes 0,5 and 1,0 as well as Molot 160 mm Paradox. Chokes and Paradox can be use with GK-01 / PSH-2 or Original FH that comes with Vepr-12.

I like Original Molot GK-01, IMHO is one of the best on the market for Vepr-12/Saiga-12 now, proved by last IPSC World and Europe competitions.

_________________
В ЧЕМ СИЛА, БРАТ? Сила в правде! ©

Image


Top
 Profile  
 
PostPosted: Sun Mar 31, 2013 8:22 pm 
Offline
User avatar

Joined: Fri Sep 28, 2012 8:46 pm
Posts: 188
For "UNLUKY" users of Vepr-12 VPO-205-01 with pinned fixed Flash Hider who whats to use Muzzle attachments such as chokes/parapox/MBC in Russia Molot designed such VPO-205-01 Adapter.

Image

Image

Image

Image

Image

Image

Image

Image

Image

Image

_________________
В ЧЕМ СИЛА, БРАТ? Сила в правде! ©

Image


Top
 Profile  
 
PostPosted: Sat Apr 27, 2013 5:55 pm 
Offline
User avatar

Joined: Sat Apr 27, 2013 5:28 pm
Posts: 65
Location: Post Falls, ID
PapaZorro, I am amazed by your wealth of knowledge, it is so helpful! I also had a couple questions that I have being trying to piece answers together to figure this out, with no luck.

Here it goes:

1. Does anyone know where I can find a GK-01? Russiansurplus.net said they don't carry them anymore, CSS makes an American made one that I cannot find any in depth reviews on, and besides the occasional E-Bay listing, I have not been able to find them anywhere.

2. To go along with the GK-01, are those internal chokes in the picture with the red backing? I saw that SGM tactical had external chokes (Saiga) but I really would love one that works in conjunction with the GK-01. Is it possible to use these with the GK-01 still on? Lastly, does anyone know where I can find those?

3. Can you use all types of loads, (target, buck, & slugs) through the GK-01.

4. Lastly, in Russia are all of these things so expensive? For example I know it is a deal right now for Molot 8 round Vepr-12 mags for $99. What is the cost equivalent to go into a gun shop in Russia and buy one of these. As an American my perception is skewed because P-Mags are around $15. Now I know these are the real deal steel mags but I was just wondering if there was a work around to this system, like someone who lives in Russia who can ship these over (legality???) Or someone in America with a good connection or reference for these types of Vepr-12 products? Finally, are these prices somewhat indicative of the gun craze prices, or is this the status-quo?

Thank you, I am not an extremely handy or mechanical person but am trying to learn. Thanks so much for the help!


Top
 Profile  
 
PostPosted: Mon Apr 29, 2013 7:07 pm 
Offline
User avatar

Joined: Fri Sep 28, 2012 8:46 pm
Posts: 188
Maybe you can find some unswears what is the difference among the US Copy and Original GK-01 and where to get Original one as well as V12 muzzle attachments here, here or here.

_________________
В ЧЕМ СИЛА, БРАТ? Сила в правде! ©

Image


Top
 Profile  
 
PostPosted: Sun Sep 01, 2013 7:54 am 
Offline
User avatar

Joined: Fri Sep 28, 2012 8:46 pm
Posts: 188
Here are some pics of my Original Molot Muzzle Attachments:

Stock GK-01 made from Al, that was forged before machined
Custom GK-01 made from Ti
Short 70 mm Molot Chokes 0,5 and 1,0
Molot 160 mm Paradox
Molot FH (Cylinder Choke 0,0).

Chokes and Paradox (have 18,5 mm entrance ID) can be use with GK-01 / PSH-2 or Original FH that comes with Vepr-12.

Image

Image

Image

Image

Image

Image

Image

Image

Image

Image

_________________
В ЧЕМ СИЛА, БРАТ? Сила в правде! ©

Image


Top
 Profile  
 
PostPosted: Sun Sep 01, 2013 7:57 am 
Offline
User avatar

Joined: Fri Sep 28, 2012 8:46 pm
Posts: 188
Some more pics of Muzzle Attachments made by Molot

Original FH (side & chamber view)

Image

Original Short (70 mm) Chokes (side & muzzle view)

Image

Original Short (70 mm) Paradox (side view)

Image

Original Short (70 mm) Paradox (muzzle view)

Image

Original Molot Choke adapter for installing Bekas 12 Ga shotgun chokes and Paradox

Tech Data

Choke adapter length: 70 mm
Bases alignment: not more than 0,05 mm
Deviation of the mean point of impact at 35 m (when sleeves are changes ): not more than 150 mm

Molot Choke adapter C (0,0) and Bekas shotgun Muzzle Sleeve (Choke) (side view)

Image

Molot Choke adapter C (0,0) with Bekas shotgun Muzzle Sleeve (Choke) installed (chamber view)

Image

Molot Choke adapter C (0,0) with Bekas shotgun Muzzle Sleeve (Paradox) installed (side view)

Image

Molot Choke adapter C (0,0) , Bekas shotgun Muzzle Sleeves (Half Choke & Full Choke), Bekas shotgun Muzzle Sleeve (Paradox) (muzzle view)

Image

Molot Custom made MBC installed on Short Choke (70 mm)

Image

Image

_________________
В ЧЕМ СИЛА, БРАТ? Сила в правде! ©

Image


Top
 Profile  
 
PostPosted: Sun Sep 01, 2013 3:32 pm 
Offline
Business Member
User avatar

Joined: Tue Sep 25, 2012 10:43 pm
Posts: 3024
Location: Yulee, Florida
I have muzzle device envy! Again, PZ always brings us the good stuff. Many thanks.

evl....

_________________
Image
DIRECT ALL WORK INQUIRIES TO...
evl@evlutionz.com


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 52 posts ]  Go to page 1, 2, 3, 4, 5, 6  Next

All times are UTC


Who is online

Users browsing this forum: No registered users and 9 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group