Strike Industries Ultralight Multi-Function End Plate w/ Anti-Rotation Castle Nut Red
Strike Industries · Buffer Tubes & Springs
No ratings yetBest price
$35.95at Ammunition Depot
In stock checked Nov 10, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Ammunition Depot Best price | $35.95checked Nov 10, 2026 | In stock | Buy at Ammunition Depot | |
| MidwayUSA | $35.95checked Nov 10, 2026 | In stock | Buy at MidwayUSA | |
| Kentucky Gun Co | $35.95checked Nov 10, 2026 | In stock | Buy at Kentucky Gun Co | |
| OpticsPlanet | $37.99Salechecked Nov 10, 2026 | In stock | Buy at OpticsPlanet | |
| AR15Discounts | $35.95checked Nov 10, 2026 | Check store | Buy at AR15Discounts | |
| Dirty Bird | $35.95checked Nov 10, 2026 | Check store | Buy at Dirty Bird | |
| Palmetto State Armory | $35.95checked Nov 10, 2026 | Check store | Buy at Palmetto State Armory |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Price history
Lowest in-stock price in the last 30 days: $35.95 at Ammunition Depot. Dashed line = out of stock. Tracking since Oct 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| AR15Discounts | $35.95 | $35.95 | $35.95 |
| Ammunition Depot | $35.95 | $35.95 | $35.95 |
| Dirty Bird | $35.95 | $35.95 | $35.95 |
| Kentucky Gun Co | $35.95 | $35.95 | $35.95 |
| MidwayUSA | $35.95 | $35.95 | $35.95 |
| OpticsPlanet | $37.99 | $37.49 | $37.99 |
| Palmetto State Armory | $35.95 | $35.95 | $35.95 |
Since Oct 28, 2026.
About this part
The Strike Industries Ultralight Multi-Function End Plate w/ Anti-Rotation Castle Nut Red is a buffer part from Strike Industries. It's sold by 7 stores (4 in stock), from $35.95 to $37.99. The lowest in-stock price in the last 30 days was $35.95 at Ammunition Depot.
Specifications
- Manufacturer
- Strike Industries
From the manufacturer
Strike Industries Ultralight Multi-Function End Plate w/ Anti-Rotation Castle Nut Red One Size. While the traditional endplate and castle nut works extremely well in retaining your receiver extension the peening of the castle nut is not conducive to rebuilding or upgrading. With the vast amount of aftermarket support for the AR system today SI feels that theres a need for a secure system as adaptive as you are. Enter the MFEP and ACN. The SI MFEP and ACN offers a built-in anti-rotation QD socket and sling loops. The MFEP is reversible to orientate sling loops to desired side. The Anti-Rotation Castle Nut (ACN) is specifically designed to work with the Multi-Function End Plate (MFEP). Instead of peening the endplate to secure the castle nut a set screw fulfills this function to allow for multiple uses as you upgrade or update your build. Also never worry about finding a flying takedown pin detent and spring again as there is an included set screw on the MFEP for ease of installation or removal. Consider the Strike Industries Ultralight Multi-Function End Plate and Black Anti-Rotation Castle Nut for your next build or upgrade for both functionality and form of your AR-15 and/or AR-10. Specifications for Strike Industries Ultralight Multi-Function End Plate w/ Anti-Rotation Castle Nut: Manufacturer: Strike Industries Fabric/Material: Ultralight 7075-T6 Aluminum Gun Make: AR Platform Gun Model: AR-10 AR-15 Weight: 1 oz Condition: New Features of Strike Industries Ultralight Multi-Function End Plate w/ Anti-Rotation Castle Nut End plate set screw to retain takedown pin detent and spring for ease of installation or removal Multi-Function End Plate is reversible to orientate sling loops to desired side No peening or staking needed with the Anti-Rotation Castle Nut and Multi-Function End Plate design Anti-rotation QD socket Multiple sling loop attachment points Package Contents: Strike Industries Ultralight Multi-Function End Plate w/ Anti-Rotation Castle Nut X1 Multifunction End Plate X1 Antirotation Castle Nut X1 Set Screw For Antirotation X1 Set Screw For Detent And Spring X1 Loctite Threadlocker Blue242 X1 Warning Card What firearm models does the manufacturer say Strike Industries Ultralight Multi-Function End Plate w/ Anti-Rotation Castle Nut is compatible with? The manufacturer says that Strike Industries Ultralight Multi-Function End Plate w/ Anti-Rotation Castle Nut is compatible with AR-15 AR-10Strike Industries SI-AR-UL-MFEP&ACN-RED: Ultralight Multi-Function End Plate w/ Anti-Rotation Castle Nut Red One Size
Similar buffer parts
Strike Industries Ultralight Multi-Function End Plate w/ Anti-Rotation Castle Nut FDE
$35.95 at Kentucky Gun Co · 9 stores
In stock
Strike Industries Multi-Function End Plate / Anti-Rotation Castle Nut Black
$34.95 at OpticsPlanet · 11 stores
In stock Sale
Rating
No ratings yet
Log in to rate this part.
Comments
Please log in to read and leave comments.