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Buffer?


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#1 Greg

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Posted 12 July 2004 - 03:05 PM

Hey guys, when talking to one of the police chiefs in my disrtict, he let me see their dept's Thompson. It's a sweet Colt 1921Serial #3065. They claim it's "not shooting right". I have'nt been able to shoot it yet, but it appears to be ok. Does a 21 have the same type of buffer system a 1928 does?
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#2 gijive

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Posted 12 July 2004 - 03:10 PM

No, the actuator, recoil spring,buffer and pilot are different. What are the symptoms of it "not shooting right?"
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#3 Greg

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Posted 12 July 2004 - 03:20 PM

GIJIVE, They say it hangs up about every tenth round. It looked pretty dry. I'm gonna give it a good cleaning in oiling.
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#4 Sig

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Posted 12 July 2004 - 04:27 PM

PK has replacement buffers
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#5 The1930sRust

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Posted 12 July 2004 - 05:50 PM

Here is a 1921 buffer set.
user posted image

PK's is a new design, and probably much better (for the gun).
user posted image

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#6 gijive

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Posted 12 July 2004 - 07:15 PM

Nice pictures Chris, very well done. You have a pretty good knack for photography.

Greg,

Thompsons like oil, that's why they have the oiler pads in the 1921/28 Models. Clean it and oil it and see how it functions. If it still hangs up on box magazines, maybe the magazine feed lips and/or the magazine spring is possibly at fault.

Cleaning and oiling might tell you what needs to be fixed. Worn springs in the receiver and grip frame also should be addressed.
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