White Label Armory
Conventional AR-15 receiver-extension hardware with a standard end plate and stakable castle nut.
The White Label Armory kit is the plain mil-spec choice this slot was missing. It supplies a standard black end plate and castle nut for an AR-15 carbine receiver extension, without adding a sling socket or proprietary locking system.

Custom
Custom AR-15 (Build From Scratch)

Palmetto State Armory
PSA PA-15 16" Carbine

Palmetto State Armory
PSA 8.5" 338 ARC HAR-15 Pistol

Palmetto State Armory
PSA Sabre Enhanced Mixtape Vol. 1 8" 300 BLK Pistol

Palmetto State Armory
PSA Sabre Forged 14.5" .223 Wylde AAC 51T Rifle

Palmetto State Armory
PSA Sabre-15 Mini MK12 8.5" 300 BLK SBR
Add the White Label Armory Mil-Spec Castle Nut and End Plate Kit to your build and see how it enhances your platform.