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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. Killer Innovations Sig P320 X-Compact Velocity Threaded Barrel
    Killer Innovations Sig P320 X-Compact Velocity Threaded Barrel
    $268.00
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  2. Lantac 9INE Fluted/Threaded Barrel For Glock 43
    Lantac 9INE Fluted/Threaded Barrel For Glock 43
    $275.99
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  3. Killer Innovations Velocity Threaded Barrel for Glock 17 GEN 5
    Killer Innovations Velocity Threaded Barrel for Glock 17 GEN 5
    $249.00
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  4. Faxon Firearms Flamed Threaded Barrel For Glock 17
    Faxon Firearms Flamed Threaded Barrel For Glock 17
    $183.08 - $201.48
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  5. Killer Innovations Sig P365XL Velocity Threaded Barrel
    Killer Innovations Sig P365XL Velocity Threaded Barrel
    $249.00
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  6. 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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  7. Killer Innovations Threaded Velocity Barrel For Glock 17
    Killer Innovations Threaded Velocity Barrel For Glock 17
    $249.00
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  8. 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. Killer Innovations Threaded Velocity Barrel For Glock 26
    Killer Innovations Threaded Velocity Barrel For Glock 26
    $249.00
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  10. Killer Innovations CZ P10-C Threaded Velocity Barrel
    Killer Innovations CZ P10-C Threaded Velocity Barrel
    $268.00
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  11. Killer Innovations Velocity Threaded Barrel For Glock 19
    Killer Innovations Velocity Threaded Barrel For Glock 19
    $249.00
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  12. Rainier Arms Exclusive Danger Close Armament DCA-365 Select Match 9mm Threaded Barrel For Sig P365 - (3.1")
    Danger Close Armament DCA-365 Select Match 9mm Threaded Barrel For Sig P365 - (3.1")
    Out of stock
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  13. Killer Innovations CZ P-10F Threaded Velocity Barrel - DLC (Black)
    Killer Innovations CZ P-10F Threaded Velocity Barrel - DLC (Black)
    $268.00
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  14. Agency Arms Glock 48 Mid Line Threaded/Fluted Barrel
    Agency Arms Glock 48 Mid Line Threaded/Fluted Barrel
    Out of stock
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  15. Agency Arms Mid Line Fluted/Threaded Barrel For Glock 17 Gen 5
    Agency Arms Mid Line Fluted/Threaded Barrel For Glock 17 Gen 5
    Out of stock
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  16. Apex Tactical Specialties 9mm Threaded Barrel for FN 509 - 4"
    Apex Tactical Specialties 9mm Threaded Barrel for FN 509 - 4"
    $213.75
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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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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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