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 CMC M1 Carbine extractor repair

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kiwigunner
Modelgun Master
Modelgun Master
kiwigunner


Number of posts : 556
Age : 73
Location / Country : Auckland/New Zealand
Registration date : 2010-03-10

CMC M1 Carbine extractor repair Empty
PostSubject: CMC M1 Carbine extractor repair   CMC M1 Carbine extractor repair Icon_minitimeWed Sep 28, 2011 12:00 pm

As mentioned in a previous post https://mp40modelguns.forumotion.net/t3088-refurbishing-a-m2-paratrooper-carbine my CMC M1 Paratrooper Carbine arrived missing the extractor spring and plunger.

CMC M1 Carbine extractor repair 01em1boltextractor

As parts are hard to get and/or expensive to buy from overseas I decided to make one myself. Using an internet photo of a real spring and plunger as a guide, I found an ordinary 3 inch nail fits the hole in the bolt. I bought a spring that also fits from a local hardware store - slightly longer than required.

CMC M1 Carbine extractor repair 02eextractorspringm-1carbine

Not having a lathe I cut off the nail head and placed the nail in the chuck of my drill-press, then with the motor running I very carefully used a basic steel file to remove excess material until the diameter of the nail just fitted the inside of the spring.

CMC M1 Carbine extractor repair 03enaildetail

Rremoving the nail, it was cut to approximately the right length with a small hacksaw, and then finally measured to fit and filed and rounded appropriately.

CMC M1 Carbine extractor repair 04CMCM1plunger

After re-assembly and checking for correct operation the plunger was blued with Casey's Birchwood Bluing paste.

CMC M1 Carbine extractor repair 05eCMCM1extractorparts

The finished part does the job, and cost $3 for the spring, which was cut to fit.

CMC M1 Carbine extractor repair 06eCMCextractorspring2

Well that's one more step closer to refurbishing my Paratrooper M1 Carbine.


Kiwigunner





Last edited by kiwigunner on Wed Sep 28, 2011 12:58 pm; edited 2 times in total (Reason for editing : add link and fix typo)
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