Product Description
Colt M4/AR15 Receiver Extension Castle Nut P/N: 9390020 Supersedes: 64069, 62357
Factory Colt castle nut for the carbine receiver extension (buffer tube). Locks the extension and end plate to the lower receiver.
Current Colt number is 9390020. Same nut previously sold as 64069 and 62357.
Features
- Genuine Colt factory castle nut
- For M4 / AR-15 carbine receiver extensions
- Secures the buffer tube and receiver end plate
- Current P/N 9390020
- Replaces 64069 and 62357
- Sold individually
Specs
- Manufacturer: Colt
- Current part number: 9390020
- Old part numbers: 64069, 62357
- Type: Receiver extension castle nut
- Platform: M4, AR-15 carbine
- Fit: Standard carbine receiver extension
This is the castle nut only. Receiver extension, end plate, and stock are sold separately.
Product Videos
Custom Field
Product Reviews
35 Reviews Hide Reviews Show Reviews
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More Colt parts.
Nice to be able to buy individual lower parts with free shipping.
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Great for a AR build
I order this castle nut along with a Colts lower parts kit to complete a Colt lower receiver build that I'm working on. Fast shipping and good price from Armsunlimited.
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Exactly what I needed
Fast shipping, product was perfect.
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Colt M4/AR15 Receiver Extension Castle Nut
Super Service, Excellent Product, Great Prices/
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Colt castle nut
Probably could have gotten a generic for cheaper but wanted to stay with Colt OEM Parts. Good price and very fast shipping. A good company to buy from.
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Colt
For A4 Lower
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Good
Good
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What I was looking for
It's a castle nut from colt. You can't go wrong with that.
