M44 or MN 91/30 Front Sight Post replacement

Beermaker

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I was noticing that my Polish M44 was shooting a little low and didn't want to screw with the original sight so my creative thoughts started flowing.
I know there are Smiths Sights and tall pins but you have to spend money that could be spent on ammo and it's not as fun as trying to figure it out yourself. So my first thoughts are presented here. Also as I need to raise the POI I have to shorten the post whereas with the MN 91/30 I have read they shoot high so you need to lengthen the post.
I didn't want to alter my original sight so I purchased a spare M44 sight front Liberty Tree. I removed the slightly bent sight post from the one I received and started thinking and measuring. Without making any changes to the sight block itself I spent about 0.18 on a 2 mm spring pin. I choose 2mm for it's OD size compared to the original sight and it's ID accepts a small nail with some carefull persuasion.
Now with that you need a small nail, say from that pile of picture hanging stuff everyone has somewhere and a dremel will certainly help. The spring pin is cut to length about 5/16" to 3/8", the nail is cut to length (edit I left the head on and just made sure it would sit flush with the bottom of the sight), tap it into the spring pin then tap the nail and pin into the sight base from the bottom until flush. It fits in pretty snug so I suspect it shouldn't vibrate up especially since the hole in the sight block tpaer down as you go up.
The nail is filed down just like the $15 tall pin on eBay. Paint the nail black and your done. I have to field test to make sure it won't vibrate out but it will be fun testing. It's in there pretty solid but some epoxy, thread lock or equivalent could help solidify the post. Once you have filed the post for elevation you can dab on some regular flat black paint or nail polish to protect the top.

I wanted to finish the post and I thought of paint but wanted flat and something that would wear off.
I researched and found Cerama coat which then lead me to VHT Flameproof flat black. Has to be baked like Cerama coat but $15 for a large rattle can at Crappy tire. http://www.vhtpaint.com/products/flameproof/

Pic 1 the basic components with before and after comparisons. Final post has the nail head left on. I haven't updated the pics.
Pic 2 the nail and spring pin assembled.
Pic 3 the assembled components which I painted afterwards with VHT Flameproof flat black.
The spring and pin can be tapped out if you want to put in the original post. If you file the nail down too far, get another nail. I am making a couple of extra post assemblies and will pre paint them.




I will soon be out to the range to test my new post and make the adjustments to post height. I left it a little long so I can file down the post to bring the POI up. Also just from viewing the sight picture, the nail is narrower than the original post. Old post about 2 mm the new post is about 1.5mm

I will add after pics once testing is done. Thank you for reading.
 
I was noticing that my Polish M44 was shooting a little low and didn't want to screw with the original sight so my creative thoughts started flowing.
I know there are Smiths Sights and tall pins but you have to spend money that could be spent on ammo and it's not as fun as trying to figure it out yourself. So my first thoughts are presented here. Also as I need to raise the POI I have to shorten the post whereas with the MN 91/30 I have read they shoot high so you need to lengthen the post.
I didn't want to alter my original sight so I purchased a spare M44 sight front Liberty Tree. I removed the slightly bent sight post from the one I received and started thinking and measuring. Without making any changes to the sight block itself I spent about 0.18 on a 2 mm spring pin. I choose 2mm for it's OD size compared to the original sight and it's ID accepts a small nail with some carefull persuasion.
Now with that you need a small nail, say from that pile of picture hanging stuff everyone has somewhere and a dremel will certainly help. The spring pin is cut to length about 5/16" to 3/8", the nail is cut to length (edit I left the head on and just made sure it would sit flush with the bottom of the sight), tap it into the spring pin then tap the nail and pin into the sight base from the bottom until flush. It fits in pretty snug so I suspect it shouldn't vibrate up especially since the hole in the sight block tpaer down as you go up.
The nail is filed down just like the $15 tall pin on eBay. Paint the nail black and your done. I have to field test to make sure it won't vibrate out but it will be fun testing. It's in there pretty solid but some epoxy, thread lock or equivalent could help solidify the post. Once you have filed the post for elevation you can dab on some regular flat black paint or nail polish to protect the top.

I wanted to finish the post and I thought of paint but wanted flat and something that would wear off.
I researched and found Cerama coat which then lead me to VHT Flameproof flat black. Has to be baked like Cerama coat but $15 for a large rattle can at Crappy tire. http://www.vhtpaint.com/products/flameproof/

Pic 1 the basic components with before and after comparisons. Final post has the nail head left on. I haven't updated the pics.
Pic 2 the nail and spring pin assembled.
Pic 3 the assembled components which I painted afterwards with VHT Flameproof flat black.
The spring and pin can be tapped out if you want to put in the original post. If you file the nail down too far, get another nail. I am making a couple of extra post assemblies and will pre paint them.




I will soon be out to the range to test my new post and make the adjustments to post height. I left it a little long so I can file down the post to bring the POI up. Also just from viewing the sight picture, the nail is narrower than the original post. Old post about 2 mm the new post is about 1.5mm

I will add after pics once testing is done. Thank you for reading.
Its very well done! Waiting range report to see how's the post hold on.
Joce
 
Quick update from the range trip today. My prelimary filing got me to 4" down. Couple of quick and light swipes with a flat needle file brought it up to center.
Definietly a better sight picture as I have less blockage of the target center and a little more light on either side. 0.5mm makes a huge diference at 100 yrds.
Didn't do too much today as I want to wait for my (arg) bifocal lenes to come in so I can see (better). Didn't do too bad for instictive shooting though but not picture worthy. The black burry thing on the white paper would be dead.
 
Well I finally got out to do some fit and finish as it were.
100 Yards, sight overcast, prone position with a small sandbag for forearm support.
PRC surplus light ball ammo circa 1971.
Drift for windage and file in very small increments to raise POI. Started with post 1 mm taller than factory post.
File down slowly to raise POI. Still need to raise it a hair but I did a few more swipes with the file which should raise it the last inch. Trim up the top edge to debur and make sure it's flat.

New post is 0.4mm narrower than the original. Just have to put on a dab of flat black paint to remove and glare.
The one hole looks like a double but it's really hard to tell, I know I shot 11. Took a little more time with the last 6.

 
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