https://www.hopcousa.com/
$100
Saw a videos on this and it looks interesting for thise of use that struggle with Irons and still love our M1. No permanent changes are made to the rifle as it replaces the rear sight.
25M zero plus 2 MOA should take you for 0-300 yards then dial or hold 4 MOA for 400. One of the 2 MOA dots should work well.
Has anyone tried it?
I will first off start by saying YMMV.
I have attempted to scope mount an M1A off and on for the past 10 years. I have used a plethora of receiver mount scope mounts such as Sadlak, GGG, UTG and a Brookfield-Type that had Israeli marking on it. I have also tried a stripper clip guide mount for a RDS (after the stripper clip was removed). I have also used (and recently threw away) the Lo Pro extended M1A rail that attaches to the barrel AND the stripper clip guide.
All of these experiments were on two Springfield Armory M1A's. #1 was manufactured circa late 99/ early 2000 and #2 was manufactured circa 2002. #1 was at least 90% USGi parts aside from the receiver and #2 was 70% or so. They ran out of USGI parts and barrels sometime in 2003 or so.
My conclusion about all of the above attempts are this: Don't even bother. I have read dozens of internet posts from varying couch commandoes about how "their" M1A work great with one of the above and gives MOA groups.
My own experiences are that anything receiver mounted gives you a wandering zero. In the case of my rifles, they may shoot 2.5 MOA with M80 spec ammo but when the rifle heats up the zero changes and I ended up with an overall group size of 6-8 MOA.
The reason you don't see this as much with irons (as I understand it) is that when the rifle heats up and things begin moving the front sight goes along with it and reduces the wandering zero to very minimal.
With the rear sight RDS and clip guide RDS, they might be good for CQB type engagements, but when you factor in parallax you may end up with a minute of barn door rifle. I don't know what the parallax is on the mini RDS, but the (as tested by me) parallax on a Trijicon MRO is huge. Like around 10 MOA. I sent the sight back. Whereas Aimpoints are like 2 MOA.
The only think that worked for me was buying an LRB M1A with the M25 receiver and dropping it into a Sage Chassis system. No wandering zero, just a 15 pound rifle.
Right now I am experimenting with the scout mount concept on my M1A. It seems to be working out ok. I am getting less than 4 MOA groups including the wandering zero. Time will tell on this one.
Quote from: DEH on May 09, 2022, 11:15:18 AM
I will first off start by saying YMMV.
I have attempted to scope mount an M1A off and on for the past 10 years. I have used a plethora of receiver mount scope mounts such as Sadlak, GGG, UTG and a Brookfield-Type that had Israeli markings on it. I have also tried a stripper clip guide mount for a RDS (after the stripper clip was removed). I have also used (and recently threw away) the Lo Pro extended M1A rail that attaches to the barrel AND the stripper clip guide.
All of these experiments were on two Springfield Armory M1A's. #1 was manufactured circa late 99/ early 2000 and #2 was manufactured circa 2002. #1 was at least 90% USGi parts aside from the receiver and #2 was 70% or so. They ran out of USGI parts and barrels sometime in 2003 or so.
My conclusion about all of the above attempts are this: Don't even bother. I have read dozens of internet posts from varying couch commandoes about how "their" M1A work great with one of the above and gives MOA groups.
My own experiences are that anything receiver mounted gives you a wandering zero. In the case of my rifles, they may shoot 2.5 MOA with M80 spec ammo but when the rifle heats up the zero changes and I ended up with an overall group size of 6-8 MOA.
The reason you don't see this as much with irons (as I understand it) is that when the rifle heats up and things begin moving the front sight goes along with it and reduces the wandering zero to very minimal.
With the rear sight RDS and clip guide RDS, they might be good for CQB type engagements, but when you factor in parallax you may end up with a minute of barn door rifle. I don't know what the parallax is on the mini RDS, but the (as tested by me) parallax on a Trijicon MRO is huge. Like around 10 MOA. I sent the sight back. Whereas Aimpoints are like 2 MOA.
The only think that worked for me was buying an LRB M1A with the M25 receiver and dropping it into a Sage Chassis system. No wandering zero, just a 15 pound rifle.
Right now I am experimenting with the scout mount concept on my M1A. It seems to be working out ok. I am getting less than 4 MOA groups including the wandering zero. Time will tell on this one.
My experience with M1A scope mounts is the same as DEH. If I had all the money I'd spent on trying to mount a scope on an M1A over the years I could buy a new AR. I'm blessed with 20/20 vision after cataract surgery and lens implants so I still shoot irons with my Super Match. My profile pic is me pointing to the impact on Morgan shingle back in November at 250 yards with the Super Match/irons.
Wreck
Quote from: Charles McKinley on May 08, 2022, 05:30:43 PMhttps://www.hopcousa.com/ (https://www.hopcousa.com/)
$100
Saw a videos on this and it looks interesting for thise of use that struggle with Irons and still love our M1. No permanent changes are made to the rifle as it replaces the rear sight.
25M zero plus 2 MOA should take you for 0-300 yards then dial or hold 4 MOA for 400. One of the 2 MOA dots should work well.
Has anyone tried it?
The original post wasn't about a scope mount. The product replaces the rear sight with a microdot. Looks interesting in concept. Youtube I watched showed the brass hitting his trijicon microdot on ejection. That I would worry about.
As far as scope mounts I have a Basset low. As long as I don't abuse it the zero doesn't wander. m80 ammo isn't meant to be accurate. m118lr with SMK are definitely more accurate at 600 and beyond.
Quote from: Herme on May 10, 2022, 02:00:30 PM
The original post wasn't about a scope mount. The product replaces the rear sight with a microdot. Looks interesting in concept. Youtube I watched showed the brass hitting his trijicon microdot on ejection. That I would worry about.
As far as scope mounts I have a Basset low. As long as I don't abuse it the zero doesn't wander. m80 ammo isn't meant to be accurate. m118lr with SMK are definitely more accurate at 600 and beyond.
I realize now that I did not explicitly state it, but the purpose of my going through all the things I have tried is that I have come to the conclusion that on an M1A type rifle that anything mounted on the receiver is likely to give poor results. That is just my opinion and YMMV, but like Ramblinwreck I have spent as much trying to scope an M1A and get decent results as I would have had I bought an AR10.
Something you may want to look into (or through) is a MISO lens installed inside the rear peep sight. While this does not provide for an optic, it does provide for clear focus of the front sight. I had a chance to look through one a few years ago on 3Huzzahs' AR-15. I was shocked at how clear the front sight was! I don't have good front-sight distance vision, but looking through his MISO I could see the texture of the black finish on his front sight post! It was unbelievably sharp and clear.
MISO makes these for the M1A and for the AR-15:
http://www.ironsightoptics.com/
https://www.creedmoorsports.com/product/miso-m1a-lens-kit/creedmoor
Vinnie
I have the opposite problem as most people my age, I can't focus on the back of my hand without glasses as it is too far away. I have had bi-vocals since 9 y.o. I'm a confirmed optics shooter. That is one of the reasons why my go to platform is the AR. It is easy to mount optics to.
Thank you DEH for your input. The other issue is most mounts for the M1A is they put the scope a mile high.
I realize now that I did not explicitly state it, but the purpose of my going through all the things I have tried is that I have come to the conclusion that on an M1A type rifle that anything mounted on the receiver is likely to give poor results. That is just my opinion and YMMV, but like Ramblinwreck I have spent as much trying to scope an M1A and get decent results as I would have had I bought an AR10.
[/quote]
Time spent on a beautiful piece of weaponry like a m1a is never wasted! The AR10 has no style or beauty
Quote from: Vinnie on May 10, 2022, 07:08:18 PM
Something you may want to look into (or through) is a MISO lens installed inside the rear peep sight. While this does not provide for an optic, it does provide for clear focus of the front sight. I had a chance to look through one a few years ago on 3Huzzahs' AR-15. I was shocked at how clear the front sight was! I don't have good front-sight distance vision, but looking through his MISO I could see the texture of the black finish on his front sight post! It was unbelievably sharp and clear.
MISO makes these for the M1A and for the AR-15:
http://www.ironsightoptics.com/
https://www.creedmoorsports.com/product/miso-m1a-lens-kit/creedmoor
Vinnie
Now that is cool!
Truth. With all of the $ I wasted on failed gear to mount optics on my M1a, I could have bought lots of practice ammo.