Jump to content

M4 mag tube thread type? Help please.


d

Recommended Posts

Can any engineer, machinist or mechanic tell me what the thread type and count is on the end of the Benelli M4 mag tube? Where the cap screws on? I tried looking it up on line and it is bewildering. Thank you.

Link to comment
Share on other sites

The factory full length tube I have here looks to have a nominal 1.00" O.D. tube with a square thread of 2mm pitch. The crest seems to be 0.9mm (.035"), the root seems to be 1.1mm (.043") and the thread depth of 0.4mm. Again a shallow thread that is covered with a rough parkerization, so those measurements are as close as I can figure for now.

Link to comment
Share on other sites

You two ought to put together a quick spec reference document, it'd rock the house. I can see how having this kind of stuff on hand could be very handy to some.

 

STA is brains here - I just do some heavy lifting.

If you do a search of his posts you can find much detailed, exact information on many tecnichal aspects of the M4 - d

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...