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  • LBE Unlimited Castle Nut AR-15 4140 Steel Phosphate Finish Firearm Part
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  • LBE Unlimited Castle Nut AR-15 4140 Steel Phosphate Finish Firearm Part

LBE Unlimited Castle Nut AR-15 4140 Steel Phosphate Finish Firearm Part

MPN: ARCNUT  |  UPC: 765857617329
$5 54

In Stock


Available for purchase in 47 states See States
Available for purchase in all U.S. States except:
  • California
  • Illinois
  • Washington
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PRODUCT DESCRIPTION

The LBE Unlimited Castle Nut is designed for AR-15 rifles to secure the buffer tube assembly to the lower receiver, contributing to firearm reliability and stability.

  • Constructed from 4140 steel for enhanced durability
  • Features a corrosion-resistant phosphate finish
  • Compatible with AR-15 platforms requiring a castle nut

This part is suitable for AR-15 builders or those needing a dependable replacement for their buffer tube assembly connection. Its robust material and finish support consistent, long-term function in AR-15 configurations.

    This item is not available to ship to the following state(s):
    California | Illinois | Washington
SPECS
Model Castle Nut
Material 4140 Steel
Finish Black Phosphate
SKU ACC-LBEU-ARCNUT
Country of Manufacture
License Requirement None
Manufacturer LBE Unlimited
Mfg. Part Number ARCNUT
UPC 765857617329
Caliber/Gauge No
Action No
Barrel Length No
Barrel Twist No
Barrel Bore Type No
Barrel Finish No
Barrel Fluting No
Barrel Profile No
Mount Type No
Beam Color No
Firearm Fit No
Compatible With Brand N/A
Threaded Barrel No
Condition New
Free Shipping No
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