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Magpul Heat-Treated Castle Nut
Magpul Heat-Treated Castle Nut

List Price: £9.00 Inc VAT
Our Price: £9.00 Inc VAT

Quantity in Stock:(Out of Stock)

Availability:: Usually Ships in 24 Hours
Product Code: MAG817


The Heat-Treated Castle Nut screws onto the AR15/M4 lower receiver extension (buffer tube) and keeps the receiver extension and lower receiver end plate secured in place. The large notches allow for positive engagement with a castle nut wrench for proper installation and torque. The smaller notches provide a location for the end user to stake the castle nut to prevent accidental loosening.

Finished in a Mil-spec manganese phosphate.

Made in the USA.

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