Tubes & Tube Components
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LBE AR-15 Castle Nut Steel Black Phosphate
LBE Unlimited
$7.99The LBE AR-15 Castle Nut Steel Black Phosphate is a top-performing gear designed specifically for those who demand only the best. Developed to meet the needs of Elite Task Force teams worldwide, this product ensures that there is no room for error when...$7.99 -
Fortis End Plate & Castle Nut Black
Fortis Manufacturing, Inc.
$32.99The Fortis End Plate & Castle Nut Black is the perfect addition to your build if you're looking to enhance both the form and function of your firearm. Manufactured from a solid piece of billet aircraft grade aluminum, this castle nut offers a significant...$32.99 -
Fortis K2 Lightweight Enhanced Castle Nut End Plate For AR-15 Aluminum Black/Gray
Fortis Manufacturing, Inc.
$54.99The Fortis K2 Lightweight Enhanced Castle Nut End Plate is a revolutionary update to the design of the AR-15 stock assembly. With the K2 system, you can attach a standard carbine buffer tube without the usual hassle of staking the castle nut. This...$54.99 -
Fortis Manufacturing AR-15 LE Locking Lever Castle Nut/End Plate K2 System
Fortis Manufacturing, Inc.
$54.99The Fortis Manufacturing AR-15 LE Locking Lever Castle Nut/End Plate K2 System is a revolutionary product that will change the way you install your castle nut onto the end plate of your AR-15. Designed by Fortis, a leading manufacturer known for their...$54.99 -
Fortis K2 Lightweight Enhanced Castle Nut End Plate For AR-15 Aluminum Black/Blue
Fortis Manufacturing, Inc.
$54.99The Fortis K2 Lightweight Enhanced Castle Nut End Plate for AR-15 is a game-changing upgrade for your stock assembly. Designed to eliminate the need to stake the castle nut, this K2 system ensures that your castle nut will not back out, providing you...$54.99 -
Fortis Manufacturing LE AR15 End Plate System K2 Black Castle Nut
Fortis Manufacturing, Inc.
$54.99The Fortis Manufacturing LE AR15 End Plate System K2 Black Castle Nut is the ultimate solution for ensuring your castle nut stays secure and eliminates the risk of it ever backing out. With its innovative design and precision engineering, this product is...$54.99 -
Fortis K1 Lightweight Enhanced Castle Nut End Plate For AR-15 Aluminum Black/Gray
Fortis Manufacturing, Inc.
$44.99The Fortis K1 Lightweight Enhanced Castle Nut End Plate is a game-changer for AR-15 stock assemblies. This innovative product eliminates the need to stake the castle nut, providing a secure attachment for a standard carbine buffer tube. With the K1...$44.99 -
Fortis K1 Lightweight Enhanced Castle Nut End Plate For AR-15 Aluminum Black/FDE
Fortis Manufacturing, Inc.
$44.99The Fortis K1 Lightweight Enhanced Castle Nut End Plate for AR-15 is a game-changer in the world of stock assemblies. With its innovative design, this castle nut and end plate combo revolutionizes the way you attach a standard carbine buffer tube. Gone...$44.99 -
Fortis K1 Lightweight Enhanced Castle Nut End Plate For AR-15 Aluminum Black/Blue
Fortis Manufacturing, Inc.
$44.99The Fortis K1 Lightweight Enhanced Castle Nut End Plate is a revolutionary product for AR-15 stock assemblies. Designed to provide superior functionality and reliability, this castle nut and end plate combo is a significant update to the traditional...$44.99 -
Battle Arms Development MIL-SPEC 6 Position Carbine Receiver Extension
Battle Arms Development, Inc.
$32.99The Battle Arms Development MIL-SPEC 6 Position Carbine Receiver Extension is a high-quality buffer tube designed for AR builds and as a replacement for worn-out extensions. Crafted with precision CNC machining from 7075-T6 aircraft grade aluminum, this...$32.99 -
Luth-AR AR-15 Carbine Buffer Spring .223 Rem/5.56 NATO Stainless Steel Natural Finish
Luth-AR
$4.99The Luth-AR AR-15 Carbine Buffer Spring is designed to be a reliable and high-quality component for your AR build. This buffer spring is specifically made to fit carbine buffer tubes, ensuring a seamless fit and optimal performance. One of the standout...$4.99 -
Luth-AR AR-10 Carbine Buffer Spring .308 Win/7.62 NATO Tempered Spring Steel Natural Finish
Luth-AR
$6.99The Luth-AR AR-10 Carbine Buffer Spring is designed to provide a high quality solution for your next AR build. This carbine buffer spring is specifically made to fit carbine buffer tubes and works hand in hand with Carbine buffers, both of which are sold...$6.99
