SKU: ZCASTLEHD
UPC: 714569647827
MPN: CASTLE-HD
The Guntec AR15 Castle Nut Wide - Heavy Duty is an essential component for buffer tube assemblies in AR-15 platform rifles, suitable for law enforcement, military, and civilian tactical applications. This castle nut secures the buffer tube to the lower receiver, preventing rotation and ensuring a solid connection between the stock assembly and the firearm's action.
Constructed from hardened steel, this heavy-duty castle nut features a wide design that distributes clamping force across a larger surface area, reducing stress on the lower receiver. The castellated tooth pattern ensures positive indexing with the buffer tube's grooves, while the wide diameter allows for the use of standard castle nut wrenches and staking tools without edge binding.
This component is ideal for AR-15 owners and gunsmiths seeking precision-engineered parts for duty rifles, competition builds, and combat-grade platforms. Installation requires a castle nut wrench and staking tool to securely lock it to the lower receiver, ensuring reliable performance during extended shooting sessions.
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