AR-15 Billet Castle Nut Black
$19.00 at Brownells · 7 stores
In stock
Specifications
- Manufacturer
- B5 Systems
Compatibility
- Platform
- AR-15
Materials and features
- Color
- Black
- Material
- Steel
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells Best price 17.76% off · ends Nov 15 · exclusions apply | $19.00checked Nov 14, 2026 | In stock | Buy at Brownells | |
| Kentucky Gun Co | $19.00checked Nov 14, 2026 | In stock | Buy at Kentucky Gun Co | |
| OpticsPlanet | $19.99Salechecked Nov 14, 2026 | In stock | Buy at OpticsPlanet | |
| Ammunition Depot | $23.99checked Nov 14, 2026 | In stock | Buy at Ammunition Depot | |
| Battlehawk Armory | $19.00Salechecked Nov 14, 2026 | Check store | Buy at Battlehawk Armory | |
| Dirty Bird | $19.00checked Nov 14, 2026 | Check store | Buy at Dirty Bird | |
| GrabAGun | $19.00Salechecked Nov 14, 2026 | Check store | Buy at GrabAGun | |
| AR15Discounts 5% off | $19.00checked Nov 14, 2026 | Check store | Buy at AR15Discounts | |
| Palmetto State Armory | $19.99checked Nov 14, 2026 | Check store | Buy at Palmetto State Armory | |
| MidwayUSA | $19.00checked Nov 14, 2026 | Out of stock | Buy at MidwayUSA |
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: $15.20 at MidwayUSA. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| AR15Discounts | $19.00 | $19.00 | $19.00 |
| Ammunition Depot | $23.99 | $19.99 | $23.99 |
| Battlehawk Armory | $19.00 | $19.00 | $19.00 |
| Brownells | $19.00 | $19.00 | $19.00 |
| Dirty Bird | $19.00 | $19.00 | $19.00 |
| GrabAGun | $19.00 | $19.00 | $19.00 |
| Kentucky Gun Co | $19.00 | $19.00 | $19.00 |
| MidwayUSA | $19.00 | $15.20 | $19.00 |
| OpticsPlanet | $19.99 | $19.99 | $19.99 |
| Palmetto State Armory | $19.99 | $19.99 | $19.99 |
Since Sep 27, 2026.
About this part
The AR-15 End Plate Steel Black is an AR-15 buffer part from B5 Systems. It's sold by 10 stores (4 in stock), from $19.00 to $23.99. The lowest in-stock price in the last 30 days was $15.20 at MidwayUSA.
From the manufacturer
The B5 Systems Quick Disconnect End Plate provides users with an alternative attachment point for single point sling use. The limited rotation one piece steel construction allows for proper staking and a lifetime of service. The commercial manganese phosphate finish is corrosion resistant. Proudly made in the USA. FEATURES Limited rotation. Steel construction. Phosphate finish. SPECS Weight: 0.50 oz. Width: 1.36 in. Height: 2.05 in. Mfg: B5 Systems
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