Rifle Scopes M1a mount?

[franks]

I have been searching for a mount to work with my M1a. my original plan was to use the A.R.M.S #18 that i originally got with the rifle, i was going to get a larue lt112 20moa scope mount to go on the Arms mount. this is the reply i got

Frank,

Our lowest mount with 20 MOA built in is the LT112, but because of the design of the ARMS #18, you don't want to use one of our mounts on it. The channel that runs from front to rear of the ARMS 18 will shear the corners off of the locking lugs on the bottom of our mounts, destroying the mount and the ARMS rail. You'll need to use a mount that uses a cross-bolt design so that it will remain securely attached.


V/R
Tony
Technical Support
512-260-4536
[email protected]


i was really looking forward to the 20moa and everything mounted as 2 units (gun and mount, scope and mount.)

is there anything else i can go with to get 20moa and it mount very solid? id like to use the scope on my 10/22 from time to time but it doesnt have to be.


if possible id really like to use larue since they are a texas based complany (im in texas) and their customer service has been up there with the best so far.

 

[insight3b]

Burris Signature rings are your best bet to add MOA. Scoping M1A's is a challenge and I've never had one hold zero. I've used Sadlak, SAInc, and ARMS #18.
Signature Rings - rifle scopes, handgun scopes, hunting scopes by Burris Optics

 

[Valken]

An Arms mount and then a Larue mount would sit the scope way High in the air. To high IMHO, you can get a few MOA's of down base from the ARMs mount or any of the Brookfield type mounts (Sadlax, Smith Ent.). But you will find with any mount on the M1A/M14 type rifles you want to sit as low as possible in rings. My own experience is the Sadlax with a set of 30MM low (.823) Badger rings and I center scope is 2.5 inches from center Bore. Now add a Larue with lets say 1.4 inches and well you get the picture. Good luck

 

[franks]

An Arms mount and then a Larue mount would sit the scope way High in the air. To high IMHO, you can get a few MOA's of down base from the ARMs mount or any of the Brookfield type mounts (Sadlax, Smith Ent.). But you will find with any mount on the M1A/M14 type rifles you want to sit as low as possible in rings. My own experience is the Sadlax with a set of 30MM low (.823) Badger rings and I center scope is 2.5 inches from center Bore. Now add a Larue with lets say 1.4 inches and well you get the picture. Good luck

is an arms mount not the same (around) height as the sadlak or smithenterprises?

 

[BCP]

Not gonna work unless you like it silly high in the air with a 3" cheek riser on the stock. Does it run with the ARMS mount installed? Mine doesn't eject 100% with an ARMS or SADLAK mount I tried everything too. If it does run great then I'd think about a scope that has lots of adjustment rather than trying to find another 20MOA in a separate mount.

 

[BCP]

is an arms mount not the same (around) height as the sadlik or smithenterprises?

ARMS is the lowest you'll find.

 

[08Cayenne]

You mount a Sadlak right and it will hold zero. I bought a NF that has 100 moa of elevation, only way I found to get the elevation I needed. 20 moa is a good bit, I only need about 32 moa, above 100 yard zero, to shoot at 1000 yards.

 

[franks]

Not gonna work unless you like it silly high in the air with a 3" cheek riser on the stock. Does it run with the ARMS mount installed? Mine doesn't eject 100% with an ARMS or SADLAK mount I tried everything too. If it does run great then I'd think about a scope that has lots of adjustment rather than trying to find another 20MOA in a separate mount.

i havent shot the gun yet, the ARMS #18 mount i have doesnt look like the others, it is not a long rail like the ones i have seen it has 2 pads and is open in the middle so i hope it will work.


your the first i have read that had problems with this

You mount a Sadlak right and it will hold zero. I bought a NF that has 100 moa of elevation, only way I found to get the elevation I needed. 20 moa is a good bit, I only need about 32 moa, above 100 yard zero, to shoot at 1000 yards.

this is good info, the Bushnell ERS is 100 moa of elevation


would i run the lowest rings i can find?

i was thinking of going with these and seeing where i end up but unsure on weather i will need higher or not since i have never mounted a scope on a m1a
http://www.midwayusa.com/product/226740/tps-34mm-tsr-w-sl-weaver-style-steel-rings-matte-super-low

 

[Name Enough]

Dann decent of them to responds as they did. I have had the Arms mount and concur it is the lowest available. Getting a check weld with a high mount is a challenge. Serious M1A shooters use a stock with an adjustble check rest. I also concur it can be a challenge keeping an M1A consistantly accurate.
I have never owned the super match but I understand they need work to get them up to speek and keep them that way.

 

[franks]

Dann decent of them to responds as they did. I have had the Arms mount and concur it is the lowest available. Getting a check weld with a high mount is a challenge. Serious M1A shooters use a stock with an adjustble check rest. I also concur it can be a challenge keeping an M1A consistantly accurate.
I have never owned the super match but I understand they need work to get them up to speek and keep them that way.

im more than pleased with Larue and will use them for anything i can from now on. very nice folks and have emailed me several times since making suggestions of where to look for this application

 

[Valken]

is an arms mount not the same (around) height as the sadlak or smithenterprises?

Arms mount sits lowest of the mounts. Then I would suggest as low set of rings as possible. With the ARMS AND OTHER BROOKFIELD TYPE MOUNTS you can slide them, a bit not much, in the dove tail and get a bit of a down base. How much I am not sure but I always know when I remove the mount and got it wrong, reinstalling it. I run out of elevation after zero. When I give it a down base, again sliding up and down in the dove tail, I have plenty of elevation after zeroing and I know I got it right

 

[BCP]

your the first i have read that had problems with this
]

Its very common. The cut out yours has is there for problems exactly like what I saw with a sadlak and reg arms mount, instead of going out the side casings go up and out, they hit the underside of the mount and stovepipe. The cut out is there to make sure that even if the ejection angle is wrong they will still clear the action hopefully. Might beat up the underside of your scope and the windage knob though.

You will know as soon as you take it to the range, if it doesn't run 100% get a new ejector spring then take your old one and cut a couple coils off. If that doesn't work try the new ejector spring. If that doesn't work try a new extractor and spring. If that doesn't work by a Bassett high mount.

 

[franks]

i already ordered the wolff spring kit for the M1a(usually do this to all of my guns if available)

i will build a shield for the scope for the first trip to ensure no damage, thanks for the heads up!!

the scope is a bushnell ERS

 

[HillbillyfromAL]

I never had a problem with the Sadlak mounts holding zero, when properly installed and locktighted.

 

[08Cayenne]

If you have 100 moa of elevation on your scope you won't need a 20 moa base, at least I didn't. My NF at 100 yard zero is 54 moa up from bottom which gives me 46 moa+ of elevation above 100 yard zero which is all you will ever need for a .308 using the right ammo out of a M1a. Max I've ever shot it is 1280 yards and I still had a couple of clicks of elevation remaining.

The rings need to be high enough for the objective to clear the handgaurd and the eyepiece to clear the rear iron sights. My current build will be strictly for lang range shooting with optics, I'm not even installing the rear iron sights. Hopefully I can get the ring size down to about 0.85", we'll see. With a Sadlak mount and a 56 mm objective I needed 1.125" high rings, probably could have gotten away with 1" but the eyepiece would have been sitting on the rear sights. With the 1.125 rings, and the Sadlak mount you can still use the iron sights without taking the scope off.

i havent shot the gun yet, the ARMS #18 mount i have doesnt look like the others, it is not a long rail like the ones i have seen it has 2 pads and is open in the middle so i hope it will work.


your the first i have read that had problems with this



this is good info, the Bushnell ERS is 100 moa of elevation


would i run the lowest rings i can find?

i was thinking of going with these and seeing where i end up but unsure on weather i will need higher or not since i have never mounted a scope on a m1a
TPS 34mm TSR W-SL Weaver-Style Steel Rings Matte Super Low

 

[franks]

fortunately the ERS is a 50mm objective, im going to get the scope in hand and then go from there.

i will definately post results

 

[Charlie Foxtrott]

I went with the Sadlak rig for my M1A. It took a while to get it dialed in. But I am pretty happy with it. You can still use your irons which is also a big plus for me.