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Problems with striker mk4… |
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Bruce2160 
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Joined: February 06 2026 Location: Luxembourg Status: Offline Points: 4 |
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 Topic: Problems with striker mk4…Posted: February 06 2026 at 3:13am |
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he!!o, I shoot a Lee Enfield .303 Mk4 with great enthusiasm. Unfortunately, I have had major problems removing the firing pin (“striker”). The threaded joint is seized in the cocking piece, and turning the striker is virtually impossible. Several wrenches have already been ruined. (The locking screw in the cocking piece has, of course, been removed.) Good advice is hard to come by, especially since Mk4 strikers are currently not available. Any help is very welcome, as the rifle shoots excellently… Thanks Bruce
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Shamu
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Logo Designer / Donating Member Joined: April 25 2007 Location: MD, USA. Status: Offline Points: 20510 |
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Posted: February 06 2026 at 9:30am |
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Many of the aftermarket tools are rubbish. Many make their own by grinding down an appropriate sized long neck socket! |
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Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)
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Sauron
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Joined: November 30 2025 Location: Virginia, USA Status: Offline Points: 90 |
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Posted: February 06 2026 at 12:55pm |
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I'm assuming you've doused it with penetrating oil? |
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Zed
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Posted: February 06 2026 at 1:44pm |
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I assume this is a No4 Mk1 rifle.
Some heat applied to the cocking piece, would be worth a try. If that doesn't work, you may need to cut the firing pin and replace both. I would recommend changing the spring as well as the firing pin and cocking piece.
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It's nice to be important, but it's more important to be nice!
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A square 10
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Posted: February 06 2026 at 3:18pm |
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i was curious as to the mk 4 comment as well , - is it a 22cal ?
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Bruce2160
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Posted: February 06 2026 at 3:25pm |
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Thank you for the advise. Seems like cutting the pin is my last issue. Unfortunately it is very hard to find a pin available in stock.
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Bruce2160
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Posted: February 06 2026 at 3:26pm |
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no, it‘s in 303…
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A square 10
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Posted: February 06 2026 at 4:15pm |
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then it must be a no4 - not a mkIV - these terms make a huge difference here , i wish you luck and suggest that the soak in kroil and maybe the heat might be a good thing to try ,
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