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dadx3 11-02-2019 09:13 PM

.22 Cal 1903A3
Has anyone ever seen or heard of a 1903A3 .22 cal conversion using a M2 bolt and Reising 10 round magazine with a barrel sleeve?

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cplnorton 11-03-2019 08:18 AM

I've seen a few of the 03A3's with the Numrich .22 conversion kit. Which sounds like basically what you are describing here.

The Numrich .22 kits are a barrel sleeve. A A3 trigger guard with a magazine, and a M2 bolt.

Numrich kits are sort of rare and can command the same prices as a complete 03A3 rifle. But they are a ton of fun to shoot.

I have one and shoot mine all the time. Swapping it between all my M1903 rifles.

dadx3 11-03-2019 11:29 AM

Do they use the Reising 10 round magazines?

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7,62x51mm 11-03-2019 05:59 PM

the 22 rf kits that Numrich once sold for the 1903 used Reising magazines but the M2 bolt had to be modified in order to work.

If you wanted to use the original M2 trigger housing and magazine the receiver feed ramp has to be modified

Mike D 11-03-2019 07:25 PM


Originally Posted by 7,62x51mm (Post 1882422)
the 22 rf kits that Numrich once sold for the 1903 used Reising magazines but the M2 bolt had to be modified in order to work.

If you wanted to use the original M2 trigger housing and magazine the receiver feed ramp has to be modified

I have one of the Numrich kits. How is the M2 bolt modified?


cplnorton 11-04-2019 07:18 AM

Are the bolts modified? I have 3 different M2 Bolts I use with the Numrich Barrel Sleeve.

Just because I had one I modified the handle to work in my A4, one I blued to be less noticeable, then the original I had with the kit.

I never modified the two that I have added and I just bought them off Ebay. So as far as I know they have no modifications.

I guess I just always thought they were just standard m2 bolts.

7,62x51mm 11-04-2019 09:13 AM

The Numrich kit had a small round length of steel silver soldiered to
the bottom of the M2 bolt in order to feed a cartridge from the Reising magazine. The original M2 bolt and magazine do not require this modification as the original M2 magazine is designed to work at a different angle and the front of the 03 feed ramp is also modified.

I have a 1903 that was low numbered and with a burned-out barrel which had a 22 RF liner installed with rear extension and use a M2 bolt with headspace adjustment and the Numrich modified 1903A3 trigger guard with Reising mag will not feed unless I add something to the bottom of the bolt to feed a cartridge.

Now if you just use the 03 with the 22 RF barrel and standard M2 bolt as a single shot everything will work

I find that the old 1903 barrels with quality 22 RF liners are quite accurate

cplnorton 11-04-2019 09:16 AM

Huh, I didn't know that. That is interesting.

I guess 9 out of 10 times, I just use it as a single shot anyways. I actually prefer it as a single shot for some odd reason.

I've always wondered why someone hasn't fabricated just the barrel insert and tool and sold them individually. Then you could just buy a M2 bolt and use it as a single shot.

The barrel insert and tool look really easy to manufacture.

ESWL 11-04-2019 12:04 PM

The Numrich conversion kit uses a standard, unmodified M2 bolt, other then possibly being blued. The removable barrel sleeve has an extended feed ramp attached to it that allows feeding from the Numrich modified triggerguard assembly using the H&R magazines.


7,62x51mm 11-04-2019 01:12 PM

I had a 22 RF liner installed in a worn out barrel, this liner has an extension to fit the M2 bolt. I bought a Numrich 1903A3 trigger guard with magazine catch installed from Numrich also with the Reising 22 RF magazine. The M2 bolt can not feed from the magazine ! Checked the trigger guard installation on the rifle, everything correct. Another friend had the same problem and said the M2 bolts needed to have a small rod fixed to the bottom of the M2 bolt to feed cartridges.

Question: were there different Reising magazines ?

dadx3 11-06-2019 01:23 PM

This rifle was a decent looking 1903A3, with the kit already installed. I do not know if they have the tool, or the original .30 bolt. What does the tool look like, and is it needed for removing the barrel sleeve I would guess? Anyone have an idea what the value would be for this set up?

Herschel 11-07-2019 08:21 AM

The tool is not essential to install/remove the barrel liner.

I use a stamped sheet metal support for a shelving unit from Lowes. The support
is small enough to insert from the back of the bolt raceway. It takes very little torque
to turn the liner 90 degrees to lock in place.

It seems that not having the tool with the conversion kit is a common problem. Someone makes the tools but I do not remember who or how to contact him.

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