Red dot adapter for Lyman sight

[Cort Tompkins]

The quickly approaching TCA shoot inspired me to get out in the garage this past weekend and slap together a removeable red dot mount for my NAC 1928.  

Behold, the mount.  It sides on the ladder of a Lyman sight and is held from the side with set screws.

I used 1018 steel because I despise painting/cerakoting/etc. and I wanted to parkerize it instead. The bosses are #23 drill rod. An aluminum RMSc picatinny mount from Amazon with sufficient extra material would be a much simpler way to start ... but hey, the steel looks cool.

Originally I was going to more permanently affix the adapter to this spare ladder I got from Numrich.  In the end I decided that swapping ladders to go from irons to the dot would be too tedious. The final design snuggly slides on and off the original ladder. Note that a small footprint sight is required to fit between the ears of the a Lyman sight (I'm using a Holosun 507k).

 

You can lift the ladder to get to the controls/adjustments. The empty holes are for set screws. I didn't have what I needed on hand but I've got some brass and nylon-tipped stainless set screws on the way which I'll try out.

 

I spaced the set screws so that it's also possible to clamp the adapter on while leaving the original notch/aperture apparatus in place (so I don't lose it!).

 

I still need to get out and shoot it, but assuming it's even close to point of aim I'll bring it to the TCA shoot this weekend.

Edited May 12 by Cort Tompkins
Grammar is hard

[SP Sarge]

Cool gadget

[Rekraps]

Engineering marvil! Nice work... even though it looks bizarre on a TSMG.

[TD.]

Cort,

I think it looks cool. Thank you for sharing.

I look forward to seeing you and that NAC Thompson at the TCA Show & Shoot later this week. This will be another great event!

[JJX]

Great job.

I like the way it looks.