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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. Battle Arms Development ONE:1 416R Threaded Barrel For Glock 19 - Black Nitride
    Battle Arms Development ONE:1 416R Threaded Barrel For Glock 19 - Black Nitride
    $199.00
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  2. Battle Arms Development ONE:1 4140 Barrel For Glock 19 - Black Nitride
    Battle Arms Development ONE:1 4140 Barrel For Glock 19 - Black Nitride
    $185.99
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  3. 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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  4. Agency Arms Mid Line Fluted/Threaded Barrel For Glock 19 Gen 5
    Agency Arms Mid Line Fluted/Threaded Barrel For Glock 19 Gen 5
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  5. L2D Combat Catalyst Stripped Slide for Glock 17 Gen 3 - DLC Black
    L2D Combat Catalyst Stripped Slide for Glock 17 Gen 3 - DLC Black
    Special Price $335.99 Regular Price $480.00
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  6. Lantac GFP-E Upgrade Firing Pin for Glock
    Lantac GFP-E Upgrade Firing Pin for Glock
    $78.99
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  7. Lantac GR-19-S Flared Head Guide Rod for Glock 19
    Lantac GR-19-S Flared Head Guide Rod for Glock 19
    Out of stock
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  8. Agency Arms Urban Combat Stripped Slide For Glock 17 Gen 4 - DLC
    Agency Arms Urban Combat Stripped Slide For Glock 17 Gen 4 - DLC
    $950.00
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  9. Apex Tactical Specialties Polymer Enhancement Trigger Kit for Glock Gen 3 & 4
    Apex Tactical Specialties Polymer Enhancement Trigger Kit for Glock Gen 3 & 4
    Out of stock
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  10. Haley Strategic HSP Thirteen Iron Sights For Glock - Full Tritium
    Haley Strategic HSP Thirteen Iron Sights For Glock - Full Tritium
    $139.00
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  11. Tactical Springs (Sprinco) Recoil Management Guide Rod System Versatility Kit - For Glock 19 Gen 1-3
    Tactical Springs (Sprinco) Recoil Management Guide Rod System Versatility Kit - For Glock 19 Gen 1-3
    $94.95
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  12. Ribbons Free Good Swampfox Wolverine Stripped Slide For Glock 19 Gen 3 w/ Mid Height Sights - Graphite Black
    Swampfox Wolverine Stripped Slide For Glock 19 Gen 3 w/ Mid Height Sights - Graphite Black
    $309.00
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  13. Griffin Armament Thread Barrel w/ Micro Carry Comp For Glock 48
    Griffin Armament Thread Barrel w/ Micro Carry Comp For Glock 48
    $186.00
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  14. Nomad Defense Hybrid Frame Parts Kit for Glock Gen 4/5 - No Trigger
    Nomad Defense Hybrid Frame Parts Kit for Glock Gen 4/5 - No Trigger
    $75.00
    Out of stock
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  15. Rainier Arms MARS (Magazine Advanced Release System) for Glock Gen 1-3
    Rainier Arms MARS (Magazine Advanced Release System) for Glock Gen 1-3
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  16. Rainier Arms Mini MARS (Magazine Advanced Release System) for Glock 43X/48
    Rainier Arms Mini MARS (Magazine Advanced Release System) for Glock 43X/48
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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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