Thread Reference Guide(Post)

Barrel Thread Reference Guide In this firearm barrel thread reference guide, Infinite Product Solutions lists all the most common barrel thread sizes we get requests for. Please keep in mind that ...

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  • QD Tapered Thread Adapter (Gen 2) - Black Nitride, 17-4 Stainless Steel

    QD Tapered Thread Adapter (Gen 2) - Black Nitride, 17-4 Stainless Steel

    $39.99
    Bridge your setups fast and solid. This Gen 2 QD tapered-thread adapter connects our externally threaded muzzle devices to our large redirect containers with a self-centering taper that locks up...
    $39.99
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  • M16 x 1 LH to 578-28 RH Thread Adapter - Black Nitride, 17-4 Stainless Steel (Gen 2)

    M16 x 1 LH to 578-28 RH Thread Adapter - Black Nitride, 17-4 Stainless Steel (Gen 2)

    $59.99
    Converts M16 x 1 left-hand metric barrels to 578-28 right-hand threads. Gen 2 17-4 stainless with a deep black nitride finish. Clean, precise machining. Not a silencer. Bridge metric to imperial...
    $59.99
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  • 1/2-28 to 5/8-24 Thread Adapter - Black Nitride, 17-4 Stainless Steel (Gen 2)

    1/2-28 to 5/8-24 Thread Adapter - Black Nitride, 17-4 Stainless Steel (Gen 2)

    $59.99
    Adapt a 1/2-28 barrel to accept 5/8-24 devices. Precision 17-4 H1150 stainless Gen 2 adapter with black nitride finish—ready for brakes, comps, and suppressors where legal. This Gen 2 adapter...
    $59.99
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  • M24 x 1.5 RH to 5/8-24 Thread Adapter - Black Nitride, 17-4 Stainless Steel (Gen 2)

    M24 x 1.5 RH to 5/8-24 Thread Adapter - Black Nitride, 17-4 Stainless Steel (Gen 2)

    $59.99
    Adapt an M24×1.5 right-hand muzzle (common on many AK-pattern front sight bases) to 5/8-24. Precision 17-4 H1150 stainless Gen 2 adapter with black nitride finish—ready for brakes, comps,...
    $59.99
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  • M13.5 x 1 LH to 1/2-28 Thread Adapter - Knurled - Black Nitride, 17-4 Stainless Steel (Gen 2)

    M13.5 x 1 LH to 1/2-28 Thread Adapter - Knurled - Black Nitride, 17-4 Stainless Steel (Gen 2)

    $59.99
    Bridge a metric M13.5×1 left-hand barrel to the common 1/2×28 standard for 9mm devices. Precision 17-4 H1150 stainless Gen 2 adapter for brakes, comps, and suppressors where legal....
    $59.99
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  • 1/2-28 to 5/8-24  Barrel Conversion Adapter - Polished, Stainless Steel (Gen 2)

    1/2-28 to 5/8-24 Barrel Conversion Adapter - Polished, Stainless Steel (Gen 2)

    $59.99
    Adapt a 1/2-28 barrel to accept 5/8-24 devices. Precision 17-4 H1150 stainless Gen 2 adapter with black nitride finish—ready for brakes, comps, and suppressors where legal. This Gen 2 adapter...
    $59.99
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  • Ruger 10/22 takedown to 1/2-28 Thread Adapter - Gen 2

    Ruger 10/22 takedown to 1/2-28 Thread Adapter - Gen 2

    $59.99
    **Turn a non-threaded Ruger 10/22 Takedown barrel into a 1/2x28 host. Precision slip-on fit clamps with six set screws for a secure, concentric mount for brakes, comps, and suppressors where legal...
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  • 1/2-28 Barrel Extension - 4 Inch - Black Nitrided Stainless Steel - Fits .223 / 5.56 /.22 / 9mm

    1/2-28 Barrel Extension - 4 Inch - Black Nitrided Stainless Steel - Fits .223 / 5.56 /.22 / 9mm

    $69.99
    Details Step up your game an extra 4 inches with the Infinite brand 4 Inch Precision Barrel Extension – designed to clear handguards or provided needed length by adding 4 extra inches to your...
    $69.99
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  • 5/8-24 RH Barrel Extension (Black Steel) - 4 Inch

    5/8-24 RH Barrel Extension (Black Steel) - 4 Inch

    $59.99
    Introducing our line of barrel extensions that allow you to add length to your barrel. Perfect for those whose handguard is longer than the barrel, this handy adapter adds 4 inches to your barrel to...
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  • QD Notched QD Brake Thread Protector - 17-4 Stainless Steel, Black Nitride

    QD Notched QD Brake Thread Protector - 17-4 Stainless Steel, Black Nitride

    $19.99
    Details The Infinite QD Notched Muzzle Thread Protector is an essential accessory for safeguarding the threads on your Quick Detach brakes and flash hiders. Crafted from 17-4 H1150 stainless steel...
    $19.99
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  • Ruger Mark 2/3/4 Bull to 1/2-28 RH Thread Adapter - Black (Steel) Ruger Mark 2/3/4 Bull to 1/2-28 RH Thread Adapter - Black (Steel)

    Ruger Mark 2/3/4 Bull to 1/2-28 RH Thread Adapter - Black (Steel)

    $39.99
    Thread your unthreaded Ruger© Mark II, III, or IV bull barrels to 1/2"-28 RH with this premium grade thread adapter. Made out of black oxidized steel, simply slip this adapter over the end of...
    $39.99
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  • 1/2-28 RH Barrel Extension (Black Steel) - 4 Inch - Fits .223 / 5.56 /.22 /9mm

    1/2-28 RH Barrel Extension (Black Steel) - 4 Inch - Fits .223 / 5.56 /.22 /9mm

    $59.99
    Introducing our line of barrel extensions that allow you to add length to your barrel. Perfect for those whose handguard is longer than the barrel, this handy adapter adds 4 inches to your barrel to...
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