Does anyone have a link to photos of the Lyman sight made for the Tommy gun? Never seen one, would like to see what they look like. Thanks
Lyman Adjustable Sight
Started by
nhglyn
, Sep 12 2003 10:08 AM
6 replies to this topic
#1
nhglyn
-
- Regular Group
-
- 42 posts
Member
- Gender:Male
- Location:New Hampshire
Posted 12 September 2003 - 10:08 AM
#2
WILSON
-
- Regular Group
-
- 34 posts
Long Time Member
- Gender:Male
- Location:eastern pa
Posted 12 September 2003 - 11:15 AM
#3
nhglyn
-
- Regular Group
-
- 42 posts
Member
- Gender:Male
- Location:New Hampshire
Posted 12 September 2003 - 12:38 PM
Another question! If a Lyman adjustable can be found, and purchased, do the holes line up with the ones that are on the 1927 A-1 of AO/Kahr manufacture? Can you just swap them, or do you need gunsmithing work to install the Lyman?
#4
The1930sRust
-
- Moderator
-
- 1939 posts
Respected Member and Board Donor
- Gender:Male
- Location:Confederate, Kentucky
- Interests:Thompsons, obviously. Proud West Hurley 1928 and Savage M1 owner, cave explorer, and KSP trooper (retired). Also interested in 1920-1930 American history. I appreciate all Thompson models and their owners.
Posted 12 September 2003 - 01:57 PM
Here's an image of the Lyman, too:
The holes on the 1927 should line up with the holes on an original Lyman sight. Still, I'd HIGHLY recommend a compenent smith do the work. When I had an original sight added to my West Hurley, I thought of doing the rivet work myself, but it would have been difficult without all the proper tooling. I opted to have PK run screws up from inside, so the sight could be more easily removed if I was ever inclined to do so:
Lyman attachment
Also, here is another Lyman image:
Lyman top
The holes on the 1927 should line up with the holes on an original Lyman sight. Still, I'd HIGHLY recommend a compenent smith do the work. When I had an original sight added to my West Hurley, I thought of doing the rivet work myself, but it would have been difficult without all the proper tooling. I opted to have PK run screws up from inside, so the sight could be more easily removed if I was ever inclined to do so:
Lyman attachment
Also, here is another Lyman image:
Lyman top
#5
PK.
-
- Board Benefactor
-
- 1569 posts
Technical Expert
- Gender:Male
- Location:CO, USA
- Interests:Full time gunsmith who loves Thompsons, 35+ years experience.
Posted 12 September 2003 - 02:22 PM
The hole position on all Thompsons, old and new is the same, however the types of attachments changed and can create challenges in adapting old sights to new guns.
The original attachment was with 1/8”solid steel rivets. This gave way to 1/8” hollow (Pop) rivets, and finally (on recent production) M4mm screws with the threads in the receiver. These latter attachments are larger in diameter that the older ones. To install an old sight without modification onto a new receiver you need to make special stepped rivets. Alternately, the sight can be modified to accept the screws, but the value of the sight usually discourages this approach.
It is difficult to do a proper rivet job without the right tooling.
The original attachment was with 1/8”solid steel rivets. This gave way to 1/8” hollow (Pop) rivets, and finally (on recent production) M4mm screws with the threads in the receiver. These latter attachments are larger in diameter that the older ones. To install an old sight without modification onto a new receiver you need to make special stepped rivets. Alternately, the sight can be modified to accept the screws, but the value of the sight usually discourages this approach.
It is difficult to do a proper rivet job without the right tooling.
#6
LIONHART
-
- Regular Group
-
- 2785 posts
Long Time RKI Member
- Gender:Male
- Interests:Thompsons of course. All Manufactures and Models.
Posted 12 September 2003 - 02:43 PM
"It is difficult to do a proper job without the right tooling"..If all else fails, weld it on! 
#7
giantpanda4
-
- Board Benefactor
-
- 2206 posts
Respected Member
- Gender:Male
- Location:Howell, MI 48855
- Interests:Mechanical toys - cars, instruments, and of course - guns. The 1921-28 thompsons are the epitomy of perfection for a mechanical device that fills all my interests!
Posted 13 September 2003 - 08:08 PM
Hey Lionhart!
Are you letting out a secret why one of your 1928 lower frames on Evilbay has weld beads on it???
I think I'm onto something here.....!!!
Are you letting out a secret why one of your 1928 lower frames on Evilbay has weld beads on it???
I think I'm onto something here.....!!!
