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Strike Industries
Overview
The Strike Industries Multi-Function End Plate is designed to enhance your AR-15 build with its integrated anti-rotation castle nut, ensuring a secure fit and reliable performance. Made from durable 6061-T6 aluminum with a hardcoat anodized finish, this end plate adds both functionality and a sleek look to your rifle. It is commonly found in builds featuring a mid-length gas system and chambered in 5.56 NATO, providing a solid foundation for a variety of applications.
Strike Industries Multi-Function End Plate With Anti-Rotation Castle Nut - Black
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Builders have been adding the Strike Industries Multi-Function End Plate With Anti-Rotation Castle Nut - Black to their builds on GunPartPicker since February 2026. All time, it ranks #17 of the 104 end plates builders have added. Builds with this end plate are split between 5.56 NATO (60%) and .223 Wylde (14%), split between mid-length (59%) and carbine-length (24%) gas systems, and mostly AR-15 (92%).
Today the one retailer we track has it in stock. Buying today, the lowest price is $34.95 at Primary Arms.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
We ranked every end plate by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 End Plate Guide →The part most often added in each category by the builds that include this one
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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the Strike Industries Multi-Function End Plate With Anti-Rotation Castle Nut - Black
| Build | Parts | Total |
|---|---|---|
 | 27 | $8013.03 |
 | 27 | $2007.58 |
 | 22 | $1073.44 |
 | 24 | $1518.62 |
 | 21 | $1366.79 |
 | 20 | $1068.20 |
 | 24 | $1658.40 |
 | 18 | $1425.19 |
 | 23 | $2794.42 |
1 global rating
Top reviews
paired this with a magpul stock and the QD socket plus the index nubs locked everything down. the castle nut staked easy with a punch and the anti-rotation tab actually keeps the receiver extension from torquing under sling load. small win but adds up
