Luth-AR AR-15 Carbine Buffer Tube Lock Ring Castle Nut
Lowest Price
MSRP
$5.05
Savings
15% off
Verified In Stock at
10 Stores
Updated
Aug 26, 2026
Compare Deals from 16 Retailers
Verified availability, then price
Lanbos Armory Best
● In Stock
Red Team Armory
● In Stock
$4.27
OpticsPlanet Coupon
Code ARMSAGORA — 7% Off Most Items
● In Stock
$4.64
$4.99
KYGUNCO
● In Stock
$4.75
MID
Midsouth Shooters Supply
● In Stock
$4.75
Good 4 Guns
● In Stock
$4.99
GrabAGun
● In Stock
$5.19
E-Commerce Arms
● In Stock
$5.23
Page 1 of 2
Durable Construction
Long Term Reliability
Precise Manufacturing
Specifications
Description
Luth-AR AR-15 Carbine Buffer Tube Lock Ring Castle Nut Features: These high quality components will provide excellent fit and reliable function in your AR series rifle and are perfect for upgrading existing components or replacing worn or broken parts. LUTH-AR s steel castle nut id a great way to finish off your carbine. Machined from 4140 steel with a manganese phosphate coating the Carbine Castle Nut/Locking Ring is an excellent replacement part or is ideal when building new rifles. Luth-AR AR-15 Carbine Buffer Tube Lock Ring Castle Nut Specifications: Manufacturer Number: CS-02 Steel castle nut Works with commercial military and hybrid buffer tubes Virtually indestructible
