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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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Strike Industries Multi-Function End Plate With Anti-Rotation Castle Nut - Black ranked #15 of the 50 end plates builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #15 of the 99 end plates builders have added. Builds with this end plate are split between 5.56 NATO (54%) and .223 Wylde (23%), mostly on mid-length gas (69%, then carbine-length 15%), and nearly all AR-15.
Updated · from real builds on GunPartPicker
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 48 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 | $7872.77 |
 | 27 | $1969.87 |
 | 22 | $1161.49 |
 | 24 | $1461.71 |
 | 21 | $1265.25 |
 | 20 | $996.82 |
 | 24 | $1580.32 |
 | 18 | $1380.37 |
 | 23 | $2777.07 |
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