This low profile castle nut comes standard with all of our Folding Stock Adapters, but can also work to replace your regular castle nut, adding room for extra attachments.
Accessories
Low Profile Steel Castle Nut Replacement for ARH300
This low profile castle nut comes standard with all of our Folding Stock Adapters, but can also work to replace your regular castle nut, adding room for extra attachments.
$4.00
Sylvan Arms
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Frequently Purchased With
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Chamber Safety Flags
$14.99 Add to cartThe Firearm Universal Chamber Safety Flag is a reliable means of indicating that your firearm’s chamber is empty, making it safe to store and handle.
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Replacement Buttstock Tube Lock for ARH300
$4.00 Add to cartThis is a replacement buttstock tube lock for our Gen 2 and Gen 3 Folding Stock Adapters.
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Rail Combo
$94.88 Add to cartOur QD Picatinny Rail Mount Combo is the best combination for easy attaching and detaching of our rail sections without using tools and within a matter of seconds!
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Sale!
Engraved Standard AR Tubelock
$6.99 – $9.99 Select optionsA Design Engraved AR tubelock replacement made from 6061 aluminum for any standard AR build.