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Muzzle Thread Caps We are offering an internally threaded muzzle cap for AR type and other threaded muzzles. The outside diameter of these are .740″ and .875″ diameters to match our AR barrels in front of the gas block section and 5/8″ – 24 TPI threads. We machine these from the same stainless steel we use to make our rifle barrels. The nine helical grip-flutes are milled with an 8″ twist rate – just like the rifling in our .223, 6.5 Grendel and .260 Remington AR drop-in barrels.
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We currently ship within the US, with more countries coming soon.
Final cost and dates are confirmed at checkout.
🇺🇸 Ship from USA · On Agora since 2026
$35.00
