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Thread: HK vs Cetme Locking Piece

  1. #21
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    I'm new to this but from what im reading here a CETME can be changed to use hk parts and vice versa. Is this correct? exactly what parts have to be changed?

    Thanks
    Southern Shooter

  2. #22
    Ol'30 Grit jfowl31's Avatar
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    HK and Cetme can use CERTAIN parts from eachother. If you read though this thread, there are lists of what are and are not interchangeable all through it as well as discussion on things that some believe may or may not be changed...

    This link is what the vast majority goes by...

    http://www.robertrtg.com/cetmeinfo.html
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  3. #23

    Charlie Don't Surf

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    Right from RobertRTG's page.

    Cetme - HK G3 Compatibility page!
    (are HK parts a match for your Cetme?)
    YES, the below HK parts will work perfect on a Cetme
    Barrels Yes
    Barrel Retainer Pins Yes
    Firing Pin Yes*
    Spring, for firing pin Yes*
    Rollers Yes
    +2, +4 Rollers Yes
    Retainer Plate and Roll Pin Retainer for Rollers Yes
    Extractor Yes*
    Extractor Spring Yes*
    Recoil Spring Yes*
    Backplate or Complete recoil Assembly Yes with minor fitting to the plastic sleeve at the end of the spring guide rod
    Complete Stock set Yes with minor fitting to the plastic sleeve at the end of the spring guide rod
    Collapsible Stock Yes with minor fitting to the plastic sleeve at the end of the spring guide rod
    Buttstock Yes with minor fitting (needs the buffer hole matched to use the cetme buffer)
    Grip Frames Yes
    Complete Trigger Pack Yes (but no individual parts)
    Rear Sight Yes (but only if entire sight base is swapped)
    Handguards, Slim Yes
    Handguards Wide Yes with minor fitting. Just like the old style HK triple frame, the cetme has a bipod retaining ring that prevents the wide from installing
    Pistol Grip Yes
    Triple Frames Yes
    Flash Hider Yes
    Eyeloop for triple frame Yes
    Cocking Handle Yes*
    Spring for cocking handle Yes*
    Pivot Pin for cocking handle Yes
    Mag Catch parts Yes
    Paddle mag release Yes
    End Cap, Dust Cover Yes (but cetme will not fit g3)
    Bayonet Adapter Yes*
    Bayonet Yes* (only when using adapter)
    Retainer Pins Yes*
    Blank Firing Adapter Yes
    Claw, Stanag Scope Mount Yes
    POF Carry handle and Port Buffer Yes (carry handle slight modification to cetme handguard)

    *these items not only interchange but are an improvement over existing Cetme parts. Over the years some items have been strengthened or improved by HK.

    No, the below HK parts will not work on a Cetme:
    Trunions No
    Bolt Carriers No
    Locking Lever for bolt carrier No
    Bolt Head No
    Locking Piece No
    Cocking Tube No
    Support for Cocking Handle No
    Recoil Buffer No unless using HK buttstock
    individual fire control group parts like trigger, sear, hammer: No
    In those moments where you're not quite sure if the undead are really dead, dead, don't get all stingy with your bullets.

  4. #24
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    So am I correct that if one were to replace these parts on a cetme rifle with hk parts it would essentially be a HK and not a cetme?
    Trunions
    Bolt Carriers
    Locking Lever for bolt carrier
    Bolt Head
    Locking Piece
    Cocking Tube
    Support for Cocking Handle

  5. #25
    Ol'30 Grit jfowl31's Avatar
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    To replace all that, you'd have to virtually destroy the receiver.

    The trunnion, Cocking tube are welded in place. The rear sight is welded on. The front sight is soldered and pinned.......

    by the time you buy all that, you might as well just buy a G3 parts kit and build your own...

    what exactly are you looking to accomplish here?
    COA #106121 COG #1000 NRA #148440199

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  6. #26
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    Just trying to completely understand the differences in these two guns.

  7. #27

    Charlie Don't Surf

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    You CANNOT use those parts in your Cetme. Period. Hope that helps
    In those moments where you're not quite sure if the undead are really dead, dead, don't get all stingy with your bullets.

  8. #28
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    Well that just adds to the confusion but thanks!

  9. #29

    Charlie Don't Surf

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    Southern,

    Lemme try again. Using these acceptable parts will NOT make your rifle a G3.

    A Cetme and G3 have a list of parts that can be used straight up without modification. These are listed below.

    HK PARTS SAFE TO USE IN A CETME UNMODIFIED

    Barrels Yes
    Barrel Retainer Pins Yes
    Firing Pin Yes*
    Spring, for firing pin Yes*
    Rollers Yes
    +2, +4 Rollers Yes
    Retainer Plate and Roll Pin Retainer for Rollers Yes
    Extractor Yes*
    Extractor Spring Yes*
    Recoil Spring Yes
    Grip Frames Yes
    Handguards, Slim Yes
    Pistol Grip Yes
    Triple Frames Yes
    Flash Hider Yes
    Eyeloop for triple frame Yes
    Cocking Handle Yes*
    Spring for cocking handle Yes*
    Pivot Pin for cocking handle Yes
    Mag Catch parts Yes
    Paddle mag release Yes
    End Cap, Dust Cover Yes (but cetme will not fit g3)
    Bayonet Adapter Yes*
    Bayonet Yes* (only when using adapter)
    Retainer Pins Yes*
    Blank Firing Adapter Yes
    Claw, Stanag Scope Mount Yes

    Modified HK PARTS SAFE TO USE IN A CETME

    Backplate or Complete recoil Assembly Yes with minor fitting to the plastic sleeve at the end of the spring guide rod

    Complete Stock set Yes with minor fitting to the plastic sleeve at the end of the spring guide rod

    Collapsible Stock Yes with minor fitting to the plastic sleeve at the end of the spring guide rod

    Buttstock Yes with minor fitting (needs the buffer hole matched to use the cetme buffer)

    Complete Trigger Pack Yes (but no individual parts)

    Rear Sight Yes (but only if entire sight base is swapped)

    Handguards Wide Yes with minor fitting. Just like the old style HK triple frame, the cetme has a bipod retaining ring that prevents the wide from installing

    POF Carry handle and Port Buffer Yes (carry handle slight modification to cetme handguard)


    HK PARTS NEVER TO BE USED IN A CETME

    Trunions No
    Bolt Carriers No
    Locking Lever for bolt carrier No
    Bolt Head No
    Locking Piece No
    Cocking Tube No
    Support for Cocking Handle No
    Recoil Buffer No unless using HK buttstock
    individual fire control group parts like trigger, sear, hammer: No
    In those moments where you're not quite sure if the undead are really dead, dead, don't get all stingy with your bullets.

  10. #30
    Ol'30 Grit jfowl31's Avatar
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    Think of it like an SKS. A Russian SKS can use Chinese parts sometimes, but swapping these parts does NOT make that Russian a Chinese gun.

    Basically, the Cetme bolt/carrier mates up with a Cetme trunning which ONLY fits into a Cetme cocking tube. An HK bolt/carrier can ONLY mate up with a HK trunnion and ONLY fit and work in an HK cocking tube.

    The trunnion is what the barrel is pressed and pinned into, and it is then welded into the receiver SOLID.

    The cocking tube is welded as well to the receiver.

    To change these parts would mean unpinning the barrel, cutting ALL the welds out, during which process you are more than a little likely to ruin the receiver because of how its all welded. Basically you'd be far worse off that just building your own rifle from scratch with a G3 parts kit.

    Furniture, trigger parts (when ALL are replaced at one time) flash hiders, charging handle... all that can be changed fairly easily back and forth. Sights are not so easy... more unpinning/ grinding welds, but its possible... again, not recommended.
    COA #106121 COG #1000 NRA #148440199

    Copenhagen is my anti-drug!

    Texas sew n' sew

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