+ Reply to Thread
Results 1 to 10 of 10

Thread: Gas piston fit into new old stock gas cylinder ?

Click here to increase the font size Click here to reduce the font size
  1. #1
    Legacy Member tr63's Avatar
    Join Date
    Jan 2013
    Last On
    02-05-2022 @ 08:25 AM
    Location
    maine U.S.A.
    Posts
    404
    Real Name
    john senesy
    Local Date
    04-13-2024
    Local Time
    06:31 AM

    Gas piston fit into new old stock gas cylinder ?

    I have 2 new old stock gas cylinders one is a Mk II the other is a Mk III . Are they good to go or do they reaming , the Mk II has a raised lip or edge at the being of the bore that prevents the gas piston from entering . If you push in the gas piston from the muzzle end it will go all the way to the very end and stop at the last 1/64 '' . Do you have to chamfer the edge of the gas cylinder ? The Mk III the gas piston will go in from each end but can not go pass the vent holes , are there burs from the machining of the vent holes that need to be removed ? I hope this the right Bren Gun section to post in
    Information
    Warning: This is a relatively older thread
    This discussion is older than 360 days. Some information contained in it may no longer be current.

  2. # ADS
    Friends and Sponsors
    Join Date
    October 2006
    Location
    Milsurps.Com
    Posts
    All Threads
    A Collector's View - The SMLE Short Magazine Lee Enfield 1903-1989. It is 300 8.5x11 inch pages with 1,000+ photo’s, most in color, and each book is serial-numbered.  Covering the SMLE from 1903 to the end of production in India in 1989 it looks at how each model differs and manufacturer differences from a collecting point of view along with the major accessories that could be attached to the rifle. For the record this is not a moneymaker, I hope just to break even, eventually, at $80/book plus shipping.  In the USA shipping is $5.00 for media mail.  I will accept PayPal, Zelle, MO and good old checks (and cash if you want to stop by for a tour!).  CLICK BANNER to send me a PM for International pricing and shipping. Manufacturer of various vintage rifle scopes for the 1903 such as our M73G4 (reproduction of the Weaver 330C) and Malcolm 8X Gen II (Unertl reproduction). Several of our scopes are used in the CMP Vintage Sniper competition on top of 1903 rifles. Brian Dick ... BDL Ltd. - Specializing in British and Commonwealth weapons Specializing in premium ammunition and reloading components. Your source for the finest in High Power Competition Gear. Here at T-bones Shipwrighting we specialise in vintage service rifle: re-barrelling, bedding, repairs, modifications and accurizing. We also provide importation services for firearms, parts and weapons, for both private or commercial businesses.
     

  3. #2
    Advisory Panel
    Peter Laidler's Avatar
    Join Date
    Jul 2008
    Last On
    Today @ 05:00 AM
    Location
    Abingdon, Oxfordshire. The home of MG Cars
    Posts
    16,510
    Real Name
    Peter Laidler
    Local Date
    04-13-2024
    Local Time
    11:31 AM
    They don'\t need reaming as such. I've never had to ream one but never say never!! As for the vent holes, maybe the gas cylinder just needs a good scrub

  4. Avoid Ads - Become a Contributing Member - Click HERE
  5. #3
    Legacy Member tr63's Avatar
    Join Date
    Jan 2013
    Last On
    02-05-2022 @ 08:25 AM
    Location
    maine U.S.A.
    Posts
    404
    Real Name
    john senesy
    Local Date
    04-13-2024
    Local Time
    06:31 AM
    Thread Starter
    Peter the Mk II has a raised lip all the way around and will need to be removed ,it will be easy to do . I was just wondering if they all need some thing to make them work or were they drop in fit ? The Mk III has been cleaned and with strong lite appears to have a bur or 2 on the vent holes inside of the gas cylinder . I will see if I can get rid of them carefully using a closely fitting steel rod ,but not to score the bore . Thanks for your help.

  6. #4
    Advisory Panel
    Peter Laidler's Avatar
    Join Date
    Jul 2008
    Last On
    Today @ 05:00 AM
    Location
    Abingdon, Oxfordshire. The home of MG Cars
    Posts
    16,510
    Real Name
    Peter Laidler
    Local Date
    04-13-2024
    Local Time
    11:31 AM
    Ah....., are you talking about the actual gas cylinder or the gas cylinder that forms part of the gun body? NOT the same thing. Photo please as I'm confused and there's not much about Brens that confuses me - except descriptions and civilianised names of parts!

  7. #5
    Legacy Member tr63's Avatar
    Join Date
    Jan 2013
    Last On
    02-05-2022 @ 08:25 AM
    Location
    maine U.S.A.
    Posts
    404
    Real Name
    john senesy
    Local Date
    04-13-2024
    Local Time
    06:31 AM
    Thread Starter
    Peter it is on the gun body at the end of the receiver . The barrel 's gas reg. slides into it at the front . the long gas piston that is attached to the bolt carrier will not fit into it, from the rear ,

  8. #6
    Legacy Member AmEngRifles's Avatar
    Join Date
    Jul 2010
    Last On
    03-31-2023 @ 06:50 AM
    Location
    Florida
    Age
    63
    Posts
    336
    Local Date
    04-13-2024
    Local Time
    05:31 AM
    Tr63, couple of comments. Your issue, is not strictly speaking, a semi auto problem. As parts kits, yoru guns are technically cut up machine guns. But as you move forward, there are particular issues with semi auto builds, so you are in the right place. 😆 and gas delivery is an important part of getting the semi autos to run.

    Get a reference manual on Brens. As Peter comments, if we weren’t UK Amourers, then we tend to “ civilianize” the names of parts, and not very well. This leads to confusion and delay. Pictures are always helpful.

    Case in point. There is NO Bolt Carrier in. Bren. It is the “ Piston Extension”, but in American shooters terminology, it gets called a bolt carrier. Easier for those trained in such things if we speak their languge. 😬

  9. #7
    Legacy Member tr63's Avatar
    Join Date
    Jan 2013
    Last On
    02-05-2022 @ 08:25 AM
    Location
    maine U.S.A.
    Posts
    404
    Real Name
    john senesy
    Local Date
    04-13-2024
    Local Time
    06:31 AM
    Thread Starter
    This is a question for a semi-auto build as the parts named are to used in 2 of my up coming builds . I do have the manuals you refer to and yes we here in the states may use the term bolt carrier in place of extension with the piston installed on it's forward end that goes in to the gas cylinder on the front end of the receiver . Maybe the semi-auto sub section is going to only cause confusion and may be better off not used

  10. #8
    Legacy Member AmEngRifles's Avatar
    Join Date
    Jul 2010
    Last On
    03-31-2023 @ 06:50 AM
    Location
    Florida
    Age
    63
    Posts
    336
    Local Date
    04-13-2024
    Local Time
    05:31 AM
    With all due respect, I disagree about not maintaining two sections. The Semi auto crowd is as large as the full auto crowd. This is a particularly American development. If we learn the items by their proper nomenclature, everyone will be on the same page. It is simply a lack of educating ourselves about proper Bren sections and individual parts that is causing the issue.

  11. #9
    Advisory Panel
    Peter Laidler's Avatar
    Join Date
    Jul 2008
    Last On
    Today @ 05:00 AM
    Location
    Abingdon, Oxfordshire. The home of MG Cars
    Posts
    16,510
    Real Name
    Peter Laidler
    Local Date
    04-13-2024
    Local Time
    11:31 AM
    The answer, surely is staring us in the face, and cheap too........ Every Bren owner throw caution to the wind, sod the expense, splash out, contact Brian at BDL in SC and invest in the little Skennerton SAIS booklet. I know it's easy for me as I sort-of know the names and operation of the gun but I'll let you all into a little secret. I use that booklet too!

  12. Thank You to Peter Laidler For This Useful Post:


  13. #10
    Legacy Member AmEngRifles's Avatar
    Join Date
    Jul 2010
    Last On
    03-31-2023 @ 06:50 AM
    Location
    Florida
    Age
    63
    Posts
    336
    Local Date
    04-13-2024
    Local Time
    05:31 AM
    Thank you. I may have possessed that book in past years, and Lord knows where it is now, so I will order again. Good suggestion.

+ Reply to Thread

Similar Threads

  1. M1C - Gas Piston Nut
    By ppknut in forum M1/M2 Carbine
    Replies: 7
    Last Post: 03-11-2012, 12:10 AM
  2. Gas piston nut, help?
    By Garandrew in forum M1/M2 Carbine
    Replies: 0
    Last Post: 01-01-2011, 08:17 AM
  3. Gas piston nut
    By bearhunter in forum M1/M2 Carbine
    Replies: 0
    Last Post: 11-27-2010, 02:08 AM
  4. Gas Piston
    By rocky321 in forum M1/M2 Carbine
    Replies: 4
    Last Post: 11-06-2010, 11:08 PM
  5. M1 garand gas piston
    By 38wadcutter in forum M1 Garand/M14/M1A Rifles
    Replies: 1
    Last Post: 09-05-2010, 06:33 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts