Ebay Contender Chamber Adapters, Why Would They Only Work In Contender?

[arakboss]

I am wondering if any Contender owners have used these type of chamber adapters and know why they wouldn't work in another firearm?

Contender G2, Chamber Adapter Kit 22lr/223 + 22WMR/223 2 Peice SET NEW 111612195043 | eBay

Use your TC 223 Barrel to shoot 22LR and 22WMR. Rim fire adapters use the TC or G2 rimfire firing pin. just a piece of round steel with a hole in middle. Manufactured from Stress Proof Blued Steel.

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[arakboss]

After reading through the ad again I see it mentions that a Contender rimfire firing pin is required. Any ideas on how an AR15 could be modified to strike the rimfire cartridge with one of these adapters being installed?

 

[arakboss]

This appears to be a slightly different design and has firing pin built into the adapter. Similiar concept though with adapter contained within the shape of the firearms cartridge type.

 

[gmerkt]

The type you show in post #3 should work in an AR. Because it provides the second firing pin that allows for an offset strike. Some time ago, I had one in this design that was 7.5x55mm Swiss down to .32 ACP. Which didn't need the offset, it was just made this way. The .32 ACP case made up what otherwise would be the mouth of a 7.5x55 Swiss case.

Having said the above, I've read that some people have had issues with AR actions getting coked up with combustion debris when firing adapted .22LR in them. The action isn't opening up by recoil, debris gets trapped in the action that might ordinarily be expelled through the working of the action. ,22 LR is about the dirtiest shooting ammo there is, short of black powder.

Re. the adapter made only for T/C arms, as mentioned in the original post. The T/C rimfire firing pin is designed such that it will strike the rimfire primer with the cartridge centered on the bore. It doesn't have it's own internal firing pin; cartridges fired in it take a direct strike.

If you are interested in added versatility for your shotguns, check out adapters ("sleeves") that may be had for adapting to centerfire pistol cartridges. I have two, 9mm Para. in 28 gauge, and .32 H&R Mag / ACP in .410 bore. When I had .30-30's, I had sleeves for a couple of .32 centerfires. I've also got a 12 ga. but as yet I haven't purchased any sleeves for it.

 

[arakboss]

The type you show in post #3 should work in an AR. Because it provides the second firing pin that allows for an offset strike. Some time ago, I had one in this design that was 7.5x55mm Swiss down to .32 ACP. Which didn't need the offset, it was just made this way. The .32 ACP case made up what otherwise would be the mouth of a 7.5x55 Swiss case.

Having said the above, I've read that some people have had issues with AR actions getting coked up with combustion debris when firing adapted .22LR in them. The action isn't opening up by recoil, debris gets trapped in the action that might ordinarily be expelled through the working of the action. ,22 LR is about the dirtiest shooting ammo there is, short of black powder.

Re. the adapter made only for T/C arms, as mentioned in the original post. The T/C rimfire firing pin is designed such that it will strike the rimfire primer with the cartridge centered on the bore. It doesn't have it's own internal firing pin; cartridges fired in it take a direct strike.

If you are interested in added versatility for your shotguns, check out adapters ("sleeves") that may be had for adapting to centerfire pistol cartridges. I have two, 9mm Para. in 28 gauge, and .32 H&R Mag / ACP in .410 bore. When I had .30-30's, I had sleeves for a couple of .32 centerfires. I've also got a 12 ga. but as yet I haven't purchased any sleeves for it.

I have run a CMMG 22lr conversion kit in one of my ARs and it dirtied up the action big time.

I do have plans to buy some chamber adapters for my shotguns, one of these days.

Every project I come up with seems to require something I don't have. I need to try and focus on projects that I can complete with parts on hand. Easier said than done for me.

 

[arakboss]

The type you show in post #3 should work in an AR. Because it provides the second firing pin that allows for an offset strike. Some time ago, I had one in this design that was 7.5x55mm Swiss down to .32 ACP. Which didn't need the offset, it was just made this way. The .32 ACP case made up what otherwise would be the mouth of a 7.5x55 Swiss case.

Having said the above, I've read that some people have had issues with AR actions getting coked up with combustion debris when firing adapted .22LR in them. The action isn't opening up by recoil, debris gets trapped in the action that might ordinarily be expelled through the working of the action. ,22 LR is about the dirtiest shooting ammo there is, short of black powder.

Re. the adapter made only for T/C arms, as mentioned in the original post. The T/C rimfire firing pin is designed such that it will strike the rimfire primer with the cartridge centered on the bore. It doesn't have it's own internal firing pin; cartridges fired in it take a direct strike.

If you are interested in added versatility for your shotguns, check out adapters ("sleeves") that may be had for adapting to centerfire pistol cartridges. I have two, 9mm Para. in 28 gauge, and .32 H&R Mag / ACP in .410 bore. When I had .30-30's, I had sleeves for a couple of .32 centerfires. I've also got a 12 ga. but as yet I haven't purchased any sleeves for it.

The goal I had for 22 adapter was to be able to fire a 22 or 25 cal blank out of my AR in manual loading mode. The CMMG 22lr conversion kit doesn't allow for that, it's semi-auto only as far as I know?

 

[red442joe]

I have run a CMMG 22lr conversion kit in one of my ARs and it dirtied up the action big time.

I do have plans to buy some chamber adapters for my shotguns, one of these days.

Every project I come up with seems to require something I don't have. I need to try and focus on projects that I can complete with parts on hand. Easier said than done for me.

Gee, just wait till you buy a lathe....
Keep looking and you start to see some Bridgeports offered at incredible prices (it's because people don't know how to move them. I do!)

Joe