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.
- Previous Part Numbers:
- 64069, 62357
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SaleOut of Stock
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Reviews
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Colt castle nut
Excellent part in original Colt packaging—proper hardness to go to 40 inch pounds on the torque wrench. Fast shipment as well. I’ll be back for more!
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Very nice
Best prices on all Colt products. Fast shipping and delivery.
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quality product
yes, I know I already reviewed this product but the more I handle my new nuts the more impressed I am with their fine fit and finish, they Shure do feel great in the hand. thanks again guys.
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quality product
needed correct parts for a pair of colt iar builds and I was not disappointed. if I do say so myself this is one great pair of nuts. not often does one receive such a high-quality pair of nuts. they are smooth, well machined, symmetrical, and best of all they are colt nuts. I would buy a pair of these nuts again. thanks A.U. GREAT NUTS!!!!
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Colt M4 Receiver Extension Castle Nut
I have always appreciated metal fabrication, even for simple parts. I really like the concentric machine marks, slightly radiuses edges, and even phosphate finish on this part-it just screams quality. If I was younger I’d gauge my ears with Colt Receiver Extension Castle Nuts, but I’m not, so I won’t.
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Great Colt product
Great Colt product at a good price.
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Great Colt quality at a good price
Works perfectly as a high quality Colt part.
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Colt extension castle nut
Great Colt quality. Got it fast .
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Barrel nut
Worked great , fast shipping.