Hk stock on Cetme

[wm69]

I know there was info on this on the old forum. To use a HK stock on a cetme do you grind on the spring RETAINER or the little BUSHING thing that goes between the spring and retainer? A coworker has a wood stocked cetme and wanted to swap black furniture on it and I told him it would work, so he ordered a set from CTD. It came, and we swapped the bushing AND the retainer over to the HK stock assembly, and now the bolt is dragging sometimes when you pull the handle back. The gun shot fine yesterday IF you could get the first round to charge, but the bolt would seem to drag and would rarely charge the first round off of the mag using the "hk slap" method (locking charging handle back into notch, insert mag, slap charging handle to release bolt).
Can you retain the orginal G3 retainer and just swap the bushing? The cetme retainer seems to wobble a bit in the HK spring guide and since the problem is intermittant I think it might be moving and catching on the bolt.

[M1 Tanker]

Yes you can use the G3 retainer. You usually only need to file down the bushing. Also make sure you didn't bend that guide rod.

[SteelCore]

the little washer on my G-3 buttstock wa a littl plastic thing, that I reduced slowly in diameter until it was the correct size. Definitely keep the G3/CETME retainers pinned to their original buttstocks. I didn't erven know you could swap that part--I thot they were different!

BTW, the HK slap method is the only way to effectively charge the G-3/CETME rifles. if you rie the carrier, you'll not get a good lockup, might not get the rifle in battery.

[wm69]

Yes you can use the G3 retainer. You usually only need to file down the bushing. Also make sure you didn't bend that guide rod.

I think you found the problem. Looks like the guide rod is slightly bent. We put it in a vice this afternoon and tried straightening it with no luck. Will the one off of his old stock work? How do you get the thing off? If the Cetme rod won't work I see RobertRTG has them for about $9 so I guess that will be the next move. Thanks for the tip.

[wm69]

Anyone? Bueller? Is the recoil spring guide removable/replaceable and will a Cetme spring guide work with the HK assembly?
Would it be possible to take the buttstock off the metal and use the HK buttstock on the Cetme metal?

[M1 Tanker]

Bend the rod back by hand....if i remember right, you can't replace them. You have to replace the whole assembly. And no, you have to use a HK stock on a HK buffer assembly.

[jfowl31]

Just file/ dremel down the bushing is my advice.

Dont bother with the cetme recoil assembly unless its on the cetme... or just swap the cetme plastic bushing onto the HK guide rod.

Good luck with it... btw, what furniture did you take off to put on the G3 stuff?

[wm69]

This is actually all being done on a buddies gun. I sold my Cetme (black widow) after determining that the barrel was going to have to be repressed because of bolt gap (or lack thereof). My buddy has an earlier wood stocked model and he got lucky on his as it's well put together. He liked the look of my black widow but wanted to be able to use a sling so I suggested HK furniture. He was debating pulling the recoil spring guide off of his cetme stock if it would work but now has decided that he's just going to buy one of the cheapie hk sets from Cheaper than dirt because he thinks he might want to go back to the wood at some point.
I shot his Cetme right after he got it a few years ago and really liked it, found a black widow locally and bought it for $300, and then realized that the sights were off beyond adjustment and I had practially no bolt gap after +4 rollers, so I sold it off. I was kinda looking for another one and then 308 ammo went through the roof so I'm done for now, but I still lurk around on cetmerifles. My buddy is pretty much totally computer illiterate so anytime he wants info on Jeeps or guns or if he wants to buy something online he comes to me for help.
Thanks for the help guys. Looks like he's out another $20 + shipping for a new set from CTD.

[jfowl31]

The last stock set I got from cheaper than dirt was a black one... I'm not sure, but I think they're outta the green ones.

The green one I bought from them was in immaculate shape, especially the buttstock.

The black one I just got is in some really sad shape. The butt has an old torn off sticker on it, and is just in overall bad shape... no big deal for me though... I'm painting it anyways.

[rustypirate]

everybody keep in mind that buttstocks are on the 922r compliance list of parts, and if you remove the crappy Century plastic buttstock to put on the HK one, you just removed a US made compliance part and replaced it with an IMPORTED one.

This can make your rifle ILEGAL.

Please please keep your rifles compliant. We would hate to see one of our buddies wind up in jail over something as simple as US parts compliance.

[jfowl31]

If youre rifle came with wood though, you're good to go on replacing the stocks with whatever you want.

he did say it was for his buddy with a wood-stocked model, so he's good to go, but to anyone just reading the thread... rusty's right on with not replacing US with foreign. If you do, you gotta make it up somehwere.

[wm69]

yeah, I found that out when I looked at putting an HK stock on my black widow so I could attach a sling. After I found out that was a no-no I was going to attach a basic sling swivel to the side of the stock as I saw someone over on the old forum had done (used a plastic spacer to support the sides of the stock and saddle (?) bolts to attach the swivel. Never got around to doing anything with it as then I read the "bolt gap" thread and got a VERY rude awakening. Ignorance was bliss, but better than having the thing blow up in my face.

[nalioth]

Anyone? Bueller? Is the recoil spring guide removable/replaceable and will a Cetme spring guide work with the HK assembly?
Would it be possible to take the buttstock off the metal and use the HK buttstock on the Cetme metal?
You can replace part # 53 in this schematic (http://www.robertrtg.com/g3schematic.html). It's held on by two pins. This is what I did when I got a Choate side folder. I replaced the G3 spring retainer for a Cetme variant. (Choate stocks don't work ootb (http://acronyms.thefreedictionary.com/OOTB) with Cetme buttstock caps)

[Seattlefungus]

The spring guide rod is rivet pressed into the stock plate. If you want a US made black buttstock with a sling mount (G3 type) check out Sarco inc. They sell the PTR US made set for $48.00. PTR sells just the butt for that. Then you get a new US Grip and Forearm you may offset your purchase by selling to someone look for 922r parts.

[chin0]

I'm sorry that I am so late on the thread, but I recently purchased a set of HK stock set with the wide handguard. So do I have to use the HK backplate or can I use my backplate from my cetme and just put the stock on there, or what? I am very new to cetmes, so please work with me, I am not familiar with the termnology.

[Bulletboy]

The spring guide rod is rivet pressed into the stock plate. If you want a US made black buttstock with a sling mount (G3 type) check out Sarco inc. They sell the PTR US made set for $48.00. PTR sells just the butt for that. Then you get a new US Grip and Forearm you may offset your purchase by selling to someone look for 922r parts.

Thx for that, I got a black HK stock set from CTD also, (actually before I even got my parts kit) and realized I'd need US made.

[okie shooter]

I'm sorry that I am so late on the thread, but I recently purchased a set of HK stock set with the wide handguard. So do I have to use the HK backplate or can I use my backplate from my cetme and just put the stock on there, or what? I am very new to cetmes, so please work with me, I am not familiar with the termnology.
Chin0, if you replace the entire buttstock assembly you can just modify the retainer on the g-3 by removeing a little of the plastic, that will allow he recoil assembly to function with the cetme, place the cetme next to your g-3 and you will see the difference and the plastic retainer that needs to be shaved off. Now as for compliance if you have a cetme black widow you need to get a compliance part to make up for losing one with the stock. The stock assemblies are interchangeable between the two rifles but the indiviual parts need lots of modification thus really are not interchangeable.

[nalioth]

I'm sorry that I am so late on the thread, but I recently purchased a set of HK stock set with the wide handguard. So do I have to use the HK backplate or can I use my backplate from my cetme and just put the stock on there, or what? I am very new to cetmes, so please work with me, I am not familiar with the termnology.
This thread contains your answers. See post #13 for a complete schematic with terms.

[chin0]

Thanx for the reply, both of you. I appreciate the help. Okie Shooter, what parts do I have to modify? Can you be a little more specific?

[okie shooter]

Thanx for the reply, both of you. I appreciate the help. Okie Shooter, what parts do I have to modify? Can you be a little more specific?
What you do is just take some material off of the white plastic retainer, so it slides the same as the Cetme assembly.. Just the retainer is too big, place the two side by side and you will see what I mean, on the end of the recoil rod. You don't have to change out to the CETME assembly, if you can live with taking some sand paper or a file and reduceing the diameter of the plastic there.

[chin0]

Thanx. I cannot get the buffer to go on the HK stock. My backplate oesn't have the two holes like the HK stock has, just one screw. Also another problem I ran into is that my buffer case fit into the hk stock, but the large screw for the buffer from my cetme wouldn't fit into the stock, any ideas? I have the same stock as shown on the g3 schematic, I have grinded and sanded down the stock, but there is a little gap between the stock and the backplate, so now I have the original wood stoc on the cetme with the OD wide handguard and od grip, looks nice with the wood stock but I kinda want the whole od set, :icon_cry:

[drine]

If you didn't buy a complete HK buttstock, maybe I didn't read the threads close enough, buy the complete OD set from CTD. Cheap enough. The only thing I didn't like about the HK stock set is the metal going over your receiver is quite a bit longer and a bigger pain to get off. Mine has now worn in and with a little detailed filing and sanding at the tight spots, it can be pulled off easily.
To sum up, if you got a complete HK buttstock assembly just file, razor, or sand it small enough to fit your bolt carrier ID. Drine

[Buzz]

Okay, I haven't seen this question answered here, so here goes. If you sand/file off enough material from the plastic part on the recoil rods so that the HK will fit in the Cetme, can it still be used on an HK or PTR?

Also, I picked up an old Cetme wood stock with everything including the recoil rod. The recoil rod wiggles a good bit, maybe 1/4 inch around its axis. Is this a problem?

[SteelCore]

don;t think so ... once you reduce it to CETME diameter, it won't catch in the HK bolt carrer properly. Then you order another HK bushing from robert@rtgparts.

my old CETME rod was wobbly, but straight, and it didn't seem to affect performance at all..I just dinn't like it because it seemed sloppy.

I accisdentally losened mine when I was a CETEM n00b and was taking the buttstock off for the 1st and 2nd time.

[Buzz]

Thanks Steelcore. I've got two sets so I can dedicate one to my Cetme and the other to my PTR.

One other thing, with my Cetme stock at the tip of the recoil rod is an all steel fixture that resembles a short cylinder with a pointy top. There is no plastic. Is this standard?

[Buzz]

Thanks Steelcore. I've got two sets so I can dedicate one to my Cetme and the other to my PTR.

One other thing, with my Cetme stock at the tip of the recoil rod is an all steel fixture that resembles a short cylinder with a pointy top. There is no plastic. Is this standard?

Correction, that metal cylinder has a sloped top that ends flat. It is a slightly smaller diameter than the HK plastic ring.

[jfowl31]

yes thats normal.

Cetme bushings are metal, HK plastic.

Best bet is to have a dedicated set to one and the other like you have, or have some extra bushings on hand that can be swapped back and forth for guys with only 1 stock set.

[drine]

Bring 'em all to the range Saturday if you can still make it. I can show you a few things that are dang near impossible to "splain" over the net. I sold all my G3 stuff but still remember the diff between them. DRine

[chin0]

OK, I cannot put the stock on my cetme backplate. The giant screw that goes from the back of the stock through the backplate to the buffer is too thick to go through the stock, so I just bought the complete g3 recoil assembly and the buffer from rtg. If I am wrong please correct me, but does the g3/hk91 backplate fit the cetme?

[okie shooter]

OK, I cannot put the stock on my cetme backplate. The giant screw that goes from the back of the stock through the backplate to the buffer is too thick to go through the stock, so I just bought the complete g3 recoil assembly and the buffer from rtg. If I am wrong please correct me, but does the g3/hk91 backplate fit the cetme?
If you read at Roberts website, the whole stock/recoil assembly will interchange with the cetme rifle, but the parts are not interchangeable, due to changes in the design of the recoil buffer. There used to be a good primer on the old site for this. If you want to use the g-3 stuff, you almost have to use the whole thing, stock, recoil buffer, and recoil rod/spring as a pin on unit. The buffers in the stocks are different, without lots and lots of work to get the g-3 into the cetme stock. There is a picture of some one who drilled out the cetme stock to fit a g3 buffer or it might have been the other way around, but why do that when the assemblies are interchangeable.

Heres a link to Mwdg3's page on this issue
http://cetme.homestead.com/files/housing_comparison.jpg

It also shows the plastic retainer vs the steel retainer that you need to reduce the diameter on the hk to make it work on a cetme.

[chin0]

thanks okie shooter. As said on the picture, the recoil washer is wider and wont freely operate inside the cetme, what does that mean? I have read the thread from top to bottom, so do I just file it down bit by bit, or can I swap it with the cetme one like jfowl said? Which would be a better way of doing it?