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I am in the process of getting a 93 converted to a 53. He's using the original 93 carrier and welding it for FA use. My question's are I know the bolt head's on the 93/53 are the same but what about the carriers? Also is he going to have to chop down the recoil rod? If I buy a complete 53 carrier group will it work in my converted 93? Since he's using the 93 carrier will a .22 conversion kit work? What if I buy a complete 53 carrier group will that same .22 conversion kit work? Any help in this would be appreciated!!
 

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I am in the process of getting a 93 converted to a 53. He's using the original 93 carrier and welding it for FA use. My question's are I know the bolt head's on the 93/53 are the same but what about the carriers? Also is he going to have to chop down the recoil rod? If I buy a complete 53 carrier group will it work in my converted 93? Since he's using the 93 carrier will a .22 conversion kit work? What if I buy a complete 53 carrier group will that same .22 conversion kit work? Any help in this would be appreciated!!
Bolt heads are the same, carriers are almost the same - the upper tube on the 53 carrier is shorter. And since the end of the carrier tube is what pushes against the recoil spring, the recoil rod and spring must be shorter as well.

Personally, I don't like welded carriers. I'm sure they work fine, I just like all original parts. They're not cheap, but depending on what he's charging you to convert the 93 carrier, you can offset the price of a 53 carrier by eliminating that step. You can get new 53 carriers from hkspecialist.net or hkparts.net for $350 or so, 53 recoil rods/springs are about $60.

But as for the .22 conversion kit - there is another way to do it - instead of cutting off the 93 carrier to 53 specs, you can alternatively shorten a 93 cocking tube to allow the 93 carrier to work properly. This has some advantages, especially if you have a .22 conversion kit. For one thing, you can use the 93 carrier and recoil rod that you already have without modifying or replacing them. Secondly, since you're still using a 93 carrier, the .22 kit will still work since that's what it was designed for.
 

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I believe he was saying he was going to shorten the cocking tube support to use the 93 carrier so if I was to go the route of getting a 53 carrier at a later date. Will the .22 conversion kit designed for the 93 work at all with the 53 carrier? Or do they make a .22 conversion kit for use with a 53 carrier? I guess since I will possibly have both I could easily swap out carrier groups when using the conversion kit. The way the price of .223 ammo seems to be headed nowadays I was primarily going to use the .22 conversion kit. Thanks for your help AviatorDave!!
 

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I believe he was saying he was going to shorten the cocking tube support to use the 93 carrier so if I was to go the route of getting a 53 carrier at a later date. Will the .22 conversion kit designed for the 93 work at all with the 53 carrier? Or do they make a .22 conversion kit for use with a 53 carrier? I guess since I will possibly have both I could easily swap out carrier groups when using the conversion kit. The way the price of .223 ammo seems to be headed nowadays I was primarily going to use the .22 conversion kit. Thanks for your help AviatorDave!!
Well if he shortens the cocking tube, it won't work with a real 53 carrier. But that is the way I'd rather do it - a shortened cocking tube is prefered to a cut down carrier.

It's been forever since I've seen a 93 sub-cal kit, but I've NEVER seen a 53 sub cal kit, so I have no idea if any exist or not. But that would be the advantage of using a shortened cocking tube - the .22 subcal kit would work, and you could also use a factory HK33 full-auto carrier if you didn't want one that was welded up.
 
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