Strike Industries Tribus Enhanced Ar-15 Castle Nut and End Plate - Black

Strike Industries Tribus Enhanced Ar-15 Castle Nut and End Plate - Black - Castle Nut - view 1

Strike Industries

Overview

The Strike Industries Tribus Enhanced AR-15 Castle Nut and End Plate is designed to provide a secure attachment point for your buffer tube assembly while enhancing the overall stability of your rifle. Made from durable 6061-T6 aluminum and featuring a hardcoat anodized finish, this castle nut and end plate combination ensures longevity and resistance to wear. This product is commonly found in builds utilizing a mid-length gas system and chambered in 5.56 NATO, making it a popular choice among builders aiming for reliable performance and ease of installation.

Specifications

TypeEnhanced
Material6061-T6 Aluminum
FinishHardcoat Anodized
ColorBlack

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Builds Featuring This Part

See all 14

Builds in the community that include the Strike Industries Tribus Enhanced Ar-15 Castle Nut and End Plate - Black

BuildPartsTotal
home defense 10.5" 5.56
29$2574.40
16" Aero Precision SBR
21$1719.77
Truck gun 16" 5.56
18$1548.12
Aero Precision 18"
24$6348.25
Wilson Combat 16" 5.56
23$1825.40
yankee hill machine 16" 5.56
22$1723.66
DMR 14.5"
33$2676.95
Range 20" 5.56
21$1079.77
10.5" 5.56
17$875.25
Carbine 14.5" 5.56
33$2676.95
as my EDC rifle 16"
26$2775.05
for night work 14.5"
21$1320.80

Customer reviews

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Top reviews

S
St1ll_W4ters
Tribus black castle nut set
Reviewed on March 18, 2026Verified with Build

Strikes Tribus enhanced castle nut and end plate in black is the same as the FDE I bought for another build, just in black. The castle nut has the larger wrench notches which makes torque easier. End plate has built-in QD socket recessed into the body.

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B
BRENNNAN
Tribus black castle nut combo
Reviewed on March 11, 2026Verified with Build

Strike Tribus enhanced castle nut and end plate in black is exactly what I wanted for a black build. Larger wrench notches torque easier. End plate has integrated QD recessed into the body. Anti-rotation flange seats positively.

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