Aero Precision

Aero Precision Receiver Extension Castle Nut

Aero Precision Aero Precision Receiver Extension Castle Nut

Aero Precision

Overview

The Aero Precision Receiver Extension Castle Nut is a end plate. Compare prices from multiple merchants and find the best deal.

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September 2026 on GunPartPicker

Aero Precision Receiver Extension Castle Nut ranked #26 of the 49 end plates builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #62 of the 109 end plates builders have added. Builds with this end plate are split between 5.56 NATO (54%) and .308 Win (31%), mostly on mid-length gas (71%, then pistol-length 14%), and mostly AR-15 (62%, then AR-10 39%).

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Frequently Built With

The part most often added in each category by the builds that include this one

Daniel Defense Collapsible Buttstock - Black

Daniel Defense Collapsible Buttstock - Black

Stock & Brace$88in 18% of them
Aero Precision Stripped M4E1 AR-15 Lower Receiver - Special Edition - Freedom

Aero Precision Stripped M4E1 AR-15 Lower Receiver - Special Edition - Freedom

Lower Receiver$155 · out of stockin 27% of them
Noveske AR-15 Takedown & Pivot Pin Set

Noveske AR-15 Takedown & Pivot Pin Set

Takedown Pin$8in 27% of them
Rise Armament Advanced Performance Trigger, Red - RA-535-RED-ARP

Rise Armament Advanced Performance Trigger, Red - RA-535-RED-ARP

Trigger$159in 27% of them
Seekins Precision Enhanced Bolt Catch

Seekins Precision Enhanced Bolt Catch

Bolt Catchin 18% of them
Wilson Combat AR-15 Billet Upper Receiver

Wilson Combat AR-15 Billet Upper Receiver

Upper Receiverin 18% of them

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Platform

61.5%
AR-1561.5%
AR-1038.5%

Caliber

53.8%
5.56 NATO53.8%
.308 Win30.8%
.223 Wylde7.7%
300 Blackout7.7%

Gas System

71.4%
Mid-Length71.4%
Pistol14.3%
Rifle14.3%

Builds Featuring This Part

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Builds in the community that include the Aero Precision Receiver Extension Castle Nut

BuildPartsTotal
16" build build
16" build		33$2812.75
Backup 5.56 build build
Backup 5.56 build		31$7690.64
LMT 10" build
LMT 10"		30$15880.63
LMT 10" build build
LMT 10" build		29$15625.65

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