Lantac RPS End Plate and Castle Nut, Black
Lowest Price
MSRP
$69.99
Savings
21% off
In Stock at
12 Stores
Updated
Jun 28, 2026
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Durable Construction
Long Term Reliability
Precise Manufacturing
Specifications
Description
The Lantac RPS Ratchet Plate System revolutionizes the way castle nuts are secured, eliminating the need for staking. This innovative system features a ratcheted tooth and arm, machined directly into the anti-rotation plate for a secure fit. The enhanced castle nut boasts an aggressive grip pattern with radially machined grooves that lock in place with the spring-like arm and tooth on the plate, ensuring it stays securely fastened even under recoil. The system also includes a built-in QD sling attachment point below the buffer tube for added functionality. Designed for ease of use, the nut remains secure through firing but can be removed with an armorers wrench if needed. Additionally, the internal-facing teeth and grooves are shielded from potential damage and the system offers a lighter weight and enhanced functionality compared to the standard design.







