Front rail is 0.25'' lower than rear rail. Sights work?

The place for beginners, or anyone else, to talk about gun, gear, and shooting topics with a minimum of jargon and/or geekery. The only stupid question is the one you don't ask that blows up in your face later.
User avatar
bubblewhip
Loose Cannon
Posts: 578
Joined: Wed Apr 04, 2012 6:20 pm

Front rail is 0.25'' lower than rear rail. Sights work?

Postby bubblewhip » Fri Feb 08, 2013 7:16 pm

I got a 1913 EGW 10/22 base for my Ruger 10/22 and it has a front rail from Tapco. I wanted to fit AR-15 Iron sights because the current EGW rail blocks the standard barrel mounted sights on the 10/22.

The problem is that the rail on the forend sits 0.25 inches lower than the rear rail. I was wondering if there is enough adjustment in an AR-15 aperture sight system to compensate for this difference? I can't get a riser rail because they are all 0.5 inches rise which would just have the same problem in the other direction.

I'll try to get a picture later.

User avatar
Highspeed
On a list somewhere
Posts: 2718
Joined: Tue Aug 19, 2008 10:44 am
Location: England

Re: Front rail is 0.25'' lower than rear rail. Sights work?

Postby Highspeed » Fri Feb 08, 2013 8:06 pm

I don't think you'll get away with a quarter inch of base height difference. Is your front rail bolted to the fore-end or integral ?
If it's bolted then you could buy or scrounge a piece of 1/4" ally plate to go under it.
All my life I been in the dog house
I guess that just where I belong
That just the way the dice roll
Do my dog house song

User avatar
bubblewhip
Loose Cannon
Posts: 578
Joined: Wed Apr 04, 2012 6:20 pm

Re: Front rail is 0.25'' lower than rear rail. Sights work?

Postby bubblewhip » Fri Feb 08, 2013 8:08 pm

Highspeed wrote:I don't think you'll get away with a quarter inch of base height difference. Is your front rail bolted to the fore-end or integral ?
If it's bolted then you could buy or scrounge a piece of 1/4" ally plate to go under it.


Integral.

User avatar
Captain Wheelgun
Loose Cannon
Posts: 829
Joined: Tue Aug 19, 2008 3:31 am
Location: Austingrad, Travis County Socialist Republic

Re: Front rail is 0.25'' lower than rear rail. Sights work?

Postby Captain Wheelgun » Fri Feb 08, 2013 8:15 pm

You may be OK if you get a 'gas block' height front sight tower. A 'standard' gas block on an AR is about .25 lower than the rail on a flattop AR receiver, and sights are taller to compensate for this. A 'rail height' front sight will be too short to zero easily.
"The best diplomat I know is a fully charged phaser bank" - Cmdr. Montgomery Scott
Captain Wheelgun's World

User avatar
Rumpshot
Active Shooter
Posts: 3874
Joined: Fri Aug 15, 2008 12:56 pm
Location: Arizona

Re: Front rail is 0.25'' lower than rear rail. Sights work?

Postby Rumpshot » Fri Feb 08, 2013 8:22 pm

I am confused. It sounds like you have two pieces. Are you using the rail on the pre-drilled mount on the receiver and something else at the muzzle? If you are doing something like that, take a look at the Tech-Sights. Front and rear sights or just one or the other.
NRA Life Member
VFW Life Member
NMLRA Field Rep
North Central Arizona

User avatar
bubblewhip
Loose Cannon
Posts: 578
Joined: Wed Apr 04, 2012 6:20 pm

Re: Front rail is 0.25'' lower than rear rail. Sights work?

Postby bubblewhip » Fri Feb 08, 2013 8:28 pm

Rumpshot wrote:I am confused. It sounds like you have two pieces. Are you using the rail on the pre-drilled mount on the receiver and something else at the muzzle? If you are doing something like that, take a look at the Tech-Sights. Front and rear sights or just one or the other.


Yes I'm using a pre-drilled mount on the rear, and an integral rail that is part of the stock on the front. A better solution would to find someone who sells a high dovetail front sight for the 10/22 and use an AR-15 height rear sight. Unfortunately despite the ubiquity of 10/22 parts, no one makes this.

User avatar
Rumpshot
Active Shooter
Posts: 3874
Joined: Fri Aug 15, 2008 12:56 pm
Location: Arizona

Re: Front rail is 0.25'' lower than rear rail. Sights work?

Postby Rumpshot » Fri Feb 08, 2013 9:11 pm

Like this?
NRA Life Member
VFW Life Member
NMLRA Field Rep
North Central Arizona

User avatar
bubblewhip
Loose Cannon
Posts: 578
Joined: Wed Apr 04, 2012 6:20 pm

Re: Front rail is 0.25'' lower than rear rail. Sights work?

Postby bubblewhip » Sat Feb 09, 2013 12:51 am

So this is what I mean.
Image
Last edited by bubblewhip on Sat Feb 09, 2013 8:27 am, edited 1 time in total.

User avatar
Netpackrat
Probably Unemployed
Posts: 12279
Joined: Sat Aug 16, 2008 12:04 am
Location: Anchorage, AK

Re: Front rail is 0.25'' lower than rear rail. Sights work?

Postby Netpackrat » Sat Feb 09, 2013 12:59 am

Not sure why you want to put iron sights on the forend rail if you are using an optic. It isn't like it's a defensive carbine that NEEDS backup irons in case of an optic failure....
Cognosce teipsum et disce pati

"People come and go in our lives, especially the online ones. Some leave a fond memory, and some a bad taste." -Aesop

User avatar
Highspeed
On a list somewhere
Posts: 2718
Joined: Tue Aug 19, 2008 10:44 am
Location: England

Re: Front rail is 0.25'' lower than rear rail. Sights work?

Postby Highspeed » Sat Feb 09, 2013 1:14 am

That's an awkward one. Back where I come from we'd say " It's neither one thing nor t'other "

Custom frontsight I reckon, maybe Chris can make you one.
All my life I been in the dog house
I guess that just where I belong
That just the way the dice roll
Do my dog house song

User avatar
Netpackrat
Probably Unemployed
Posts: 12279
Joined: Sat Aug 16, 2008 12:04 am
Location: Anchorage, AK

Re: Front rail is 0.25'' lower than rear rail. Sights work?

Postby Netpackrat » Sat Feb 09, 2013 8:10 am

Please shrink that picture down; it is screwing up the page formatting.

Go here:

http://nodakspud.com/NDS-22.htm

They appear to have all the parts you need, to end up in the configuration you want. You will most likely have to buy their rail and rear sight combination, along with one of their front sight setups. They have a blurb on their main page that says they are currently not taking orders, but I am not sure if that only applies to receivers, or everything they sell. Their main business is making AK receivers, so they are kind of swamped with orders for those right now. When I called them last month (before they closed orders) to get in line for a couple receivers, I didn't have any trouble getting through to them. The main bottleneck on receivers seems to be the process work they have to farm out in batches. So you may still be able to get 10/22 stuff from them if you give them a call.
Cognosce teipsum et disce pati

"People come and go in our lives, especially the online ones. Some leave a fond memory, and some a bad taste." -Aesop


Return to “Beginners Luck”

Who is online

Users browsing this forum: No registered users and 1 guest