Best price
$45.99at Ammunition Depot
In stock checked Nov 14, 2026
Specifications
- Manufacturer
- Primary Weapons Systems
Materials and features
- Platform
- AR-15
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Ammunition Depot Best price | $45.99checked Nov 14, 2026 | In stock | Buy at Ammunition Depot | |
| Brownells 17.76% off · ends Nov 15 · exclusions apply | $32.99checked Nov 14, 2026 | Out of stock | Buy at Brownells |
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: $39.95 at Ammunition Depot. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Ammunition Depot | $45.99 | $39.95 | $49.99 |
| Brownells | $32.99 | $32.99 | $32.99 |
Since Sep 27, 2026.
About this part
The Rachet Castle Nut QD End Plate Set is an accessory from Primary Weapons Systems. It's sold by 2 stores (1 in stock), from $32.99 to $45.99. The lowest in-stock price in the last 30 days was $39.95 at Ammunition Depot.
From the manufacturer
The Primary Weapons Systems Ratchet Lock Castle Nut End Plate set works with mil-spec or commercial buffer tubes and is an alternative to staking. A quick upgrade to any rifle build, the Ratchet Lock Castle Nut End Plate features a QD mount and easy installation with any buffer tube.
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