Centerfire Rifle Adapters

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We have the most complete line of centerfire rifle adapters for your host firearms available in the USA! Reasonable pricing and fast, low cost shipping. Our adapters are made from American steel by American workers on precision CNC machines in the United States to guarantee concentric to your host firearms barrel threads. From raw material to finishing, all work is done in house and we stand by our products.



Quantity Model- Manufacturer Product Image Item Name Price
38 AD-38-034 XCALIBER FIREARMS .578-28 to 5/8-32 Thread Adapter

.578-28 to 5/8-32 Thread Adapter

This Adapter is threaded .578-28 to 5/8-32. This adapter will only fit a barrel threaded .578-28 and a host threaded 5/8-32. This adapter will pass 45ACP and lower.
$49.99

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10 AD-38-033 XCALIBER FIREARMS .578-28 to M16x1LH Thread Adapter

.578-28 to M16x1LH Thread Adapter

This adapter reads FEMALE to MALE (barrel to muzzle device). This quality precision machined thread adapter allows you to use a silencer or muzzle device threaded M16x1LH (left handed threads) to fit .578-28 (45acp thread) barrel threads. The adapter is threaded .578-28 (female threads) and has M16x1LH threads on the outside (male). M16x1LH is a common Kriss Vector 45ACP Thread pattern. It is...
$49.99

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123 AD-AR-005 1/2-28 to 1/2-36 AR15 Thread Adapter Silencer Adapter

1/2-28 to 1/2-36 AR15 Thread Adapter Silencer Adapter

This adapter fits any standard AR15 with 1/2-28 TPI and changes the thread to 1/2-36 TPI so you can mount your silencer that is threaded to that pitch. Black Oxide finished, wrench flats included. Turned on a precision CNC turning center so the part is guaranteed concentric to your barrel threads.
$49.99

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112 AD-38-012 XCALIBER FIREARMS 1/2-28 to 3/4-24 Thread Adapter Silencer Adapter

1/2-28 to 3/4-24 Thread Adapter Silencer Adapter

This quality precision machined thread adapter allows you to use a silencer or muzzle device threaded 3/4-24 to fit 1/2-28 barrel threads. The adapter is threaded 1/2-28 on in the inside (female threads) and has 3/4-24 threads on the outside (male). It is machined in one turning operation to guarantee concentrically to your barrel threads. Full engagement flats for easier removal and...
$49.99

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26 AD-38-023 XCALIBER FIREARMS 1/2-28 to 3/8-24 Silencer Thread Adapter

1/2-28 to 3/8-24 Silencer Thread Adapter

This quality precision machined thread adapter allows you to use a silencer or muzzle device threaded 3/8-24 to fit 1/2-28 barrel threads. The adapter is threaded 1/2-28 on in the inside (female threads) and has 3/8-24 threads on the outside (male). It is machined in one turning operation to guarantee concentricity to your barrel threads. Full engagement flats for easier removal and disassembly....
$49.99

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15 AD-38-TP1 XCALIBER FIREARMS 1/2-28 to 5/8-24 Thread Adapter 308 Adapter w/Thread Protector

1/2-28 to 5/8-24 Thread Adapter 308 Adapter w/Thread Protector

This quality precision machined thread adapter allows you to use a .308/7.62mm silencer on your .223/5.56mm host weapon. The adapter is threaded 1/2-28 on in the inside (female threads) and has 5/8-24 threads on the outside (male). It is machined in one turning operation to guarantee concentricity to your barrel threads. Black Oxide finished. Engraved. This adapter comes with a steel knurled...
$42.99

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110 AD-38-001 XCALIBER FIREARMS 1/2-28 to 5/8-24 Thread Adapter- 308 Adapter

1/2-28 to 5/8-24 Thread Adapter- 308 Adapter

This quality precision machined thread adapter allows you to use a .308/7.62mm silencer on your .223/5.56mm host weapon. The adapter is threaded 1/2X28 on in the inside (female threads) and has 5/8X24 threads on the outside (male). It is machined in one turning operation to guarantee concentricity to your barrel threads. Full engagement flats for easier removal and disassembly. You can even use a...
$29.99

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150 AD-AR-001L XCALIBER FIREARMS 1/2-28 to 9/16-24 Left Hand Thread Adapter

1/2-28 to 9/16-24 Left Hand Thread Adapter

This adapter fits any standard AR15 with 1/2-28 TPI and changes the thread to 9/16-24 LEFT HAND! Black Oxide finished, wrench flats included. Turned on a precision CNC turning center so the part is guaranteed concentric to your barrel threads. Beware that the thread adapter turns onto your existing barrel threads that are 1/2-28 Right Hand, and the external threads are LEFT hand threaded. This...
$49.99

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