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Parts

Our amazing offer consists of a great variety of AR-10, AR-15, and pistol parts and accessories. Purchase upper receivers, muzzle devices, handguards, BCG, barrels, triggers, magazine extensions, etc., and start modifying your firearm today.

Parts

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  1. Fortis MFG Match Grade Non-Threaded Barrel For Glock 19 with Lone Rifling
    Fortis MFG Match Grade Non-Threaded Barrel For Glock 19 with Lone Rifling
    $189.95 - $199.95
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  2. L2D Combat Precision Match Fluted Barrel For Glock 19
    L2D Combat Precision Match Fluted Barrel For Glock 19
    $149.99
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  3. L2D Combat Precision Match Fluted Barrel For Glock 17
    L2D Combat Precision Match Fluted Barrel For Glock 17
    $149.99
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  4. True Precision X-Fluted Match Grade Threaded Barrel For Glock 43
    True Precision X-Fluted Match Grade Threaded Barrel For Glock 43
    $170.99 - $189.99
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  5. Killer Innovations Non-Threaded Velocity Barrel For Glock 26
    Killer Innovations Non-Threaded Velocity Barrel For Glock 26
    $229.00
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  6. Killer Innovations Threaded Velocity Barrel For Glock 26
    Killer Innovations Threaded Velocity Barrel For Glock 26
    $249.00
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  7. Killer Innovations Non-Threaded Velocity Barrel For Glock 17
    Killer Innovations Non-Threaded Velocity Barrel For Glock 17
    $229.00
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  9. Fortis MFG Match Grade Barrel with Lone Rifling For Glock 19 - Threaded
    Fortis MFG Match Grade Barrel with Lone Rifling For Glock 19 - Threaded
    $210.85 - $220.35
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  10. True Precision X Fluted Match Grade Threaded Barrel For Glock 19
    True Precision X Fluted Match Grade Threaded Barrel For Glock 19
    $189.99 - $218.49
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  13. Lantac 9INE Fluted/Threaded Barrel For Glock 43
    Lantac 9INE Fluted/Threaded Barrel For Glock 43
    $275.99
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  15. Lantac Fluted Threaded Barrel For Glock 17
    Lantac Fluted Threaded Barrel For Glock 17
    $275.99
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  16. Lantac Fluted Non-Threaded Barrel For Glock 17
    Lantac Fluted Non-Threaded Barrel For Glock 17
    $229.99
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Items 17-32 of 68

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Firearm parts

Rainier Arms is the best place to purchase parts and accessories for your rifle or pistol online, and all that for more than affordable prices. Look no further, you can find here everything that comes to your mind and more! The best manufacturers in the business, like Killer Innovations, Lantac, Next Level Armament, Rainier Arms LLC, Apex Tactical Specialties, and many more are here to offer you their high-quality products. Select your preferred part and make your AR-10, AR-15 or pistol a unique piece of firearm.

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  1. 1/2x28 14 items
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What are the most common barrel thread patterns for pistols and rifles?

For .22LR, .22MAG, .17HMR, 9mm, and .223/5.56 NATO the most common thread pattern would be 1/2x28, with some exceptions for 9mm and .223/5.56 NATO firearms. As for .308/7.62mm and .338 Lapua Magnum, the thread pattern that is most commonly used is 5/8x24, with a few exceptions. Another typical thread pattern is 9/16x24 and it is mostly used for .40 S&W weapons.

Single triggers or two-stage triggers?

Whichever you choose, you cannot go wrong. The single trigger is fast and simple to use; as soon as you apply a small amount of pressure, the firearm goes off. Two-stage trigger is extremely accurate and you know precisely when the shot is going to be fired. The first stage prepares you for the second one, when the trigger pushes the hammer up causing the firearm to discharge. So, it is up to you to make a choice.

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