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Good slightly larger castle nut - Guntec USA AR-15 Heavy Duty Wide Castle Nut For Car/M4 Buffer Tube

by wildcatgoal, Verified Owner from GA, United States Written on January 14, 2026
Review for Guntec USA AR-15 Heavy Duty Wide Castle Nut For Car/M4 Buffer Tube
Guntec USA AR-15 Heavy Duty Wide Castle Nut For Car/M4 Buffer Tube
Guntec USA AR-15 Heavy Duty Wide Castle Nut For Car/M4 Buffer Tube
$11.98 $8.99 Save 25%
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wildcatgoal's Review of Guntec USA AR-15 Heavy Duty Wide Castle Nut For Car/M4 Buffer Tube

This is a couple mm "wider" than a standard castle nut, which is nice to cover more of the exposed threads of a buffer tube.
Pros:
  • Slightly Larger
  • Covers More Threads of Buffer Tube
Cons:
  • None
Would Recommend: Yes
Was it helpful to you? Yes | No
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