Brand:

Armaspec Self-Retention Caste Nut / Alum

SKU: armaspec-self-retention-castenut-alum
1 user has this item in wishlist
FLASH Sale: use code OCTOBER1226 for an additional 12% off this item. $50 Max Discount.

Select an option to view pricing

Low Price Guarantee
Fast Shipping
Fast Shipping Make orders ship same day
Secure checkout SSL encrypted
Easy Returns
Easy Returns 30-day returns
SKU: armaspec-self-retention-castenut-alum Category:
Description

The Armaspec Self-Retention Castle Nut is a lightweight AR-15 component designed to simplify buffer tube installation while improving long-term retention. Its self-retention thread design uses patented locking geometry to eliminate the need for staking or thread locker, maintaining a secure fit under repeated use. Machined from 7075-T6 aluminum, the structure offers a high strength-to-weight ratio suitable for performance-driven, lightweight rifle builds. A hardcoat anodized olive drab green finish provides increased resistance to wear and corrosion. This item is made in the USA.

Features:

  • Self-retention thread geometry with no staking or thread locker required
  • Precision-fit for improved retention and minimal movement
  • Constructed from 7075-T6 aluminum
  • Hardcoat anodized for corrosion and abrasion resistance
  • Installs without special tools

Specifications:

  • Color: Black, FDE and OD Green
  • Finish: Hardcoat Anodized
  • Material: Aluminum – 7075-T6
Weight N/A
Dimensions N/A
Color

Black, Bronze, FDE, OD Green
MPN ARM6521-BLK,ARM6511-RED,ARM6521-FDE
UPC 810048494019, 810048493999, 810048494095
P65 Warning Message
P65 Warning Message

Compliance

NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.