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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. Rainier Arms Exclusive Nomad Defense Hybrid Frame Parts Kit for Glock Gen 4/5
    Nomad Defense Hybrid Frame Parts Kit for Glock Gen 4/5
    $85.00
    Out of stock
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  2. Rainier Arms Fiber Optic Suppressor Height Sight Set For Glock - LOGO
    Rainier Arms Fiber Optic Suppressor Height Sight Set For Glock - LOGO
    $50.00
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  3. Faxon Firearms Duty Series Barrel For Glock 19 - Threaded Nitride
    Faxon Firearms Duty Series Barrel For Glock 19 - Threaded Nitride
    $127.88
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  4. Apex Tactical Specialties Action Enhancement Trigger Kit for Glocks - G43, 43x, 48 - Black
    Apex Tactical Specialties Action Enhancement Trigger Kit for Glocks - G43, 43x, 48 - Black
    $99.75
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  5. Faxon Firearms Hellfire Slide For Glock 19 w/ RMR Optic Cut - DLC
    Faxon Firearms Hellfire Slide For Glock 19 w/ RMR Optic Cut - DLC
    $293.48
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  6. Rainier Arms Exclusive Spinta Precision Allegiance Slide for Glock 19 Gen 3 (Rainier Arms Exclusive)
    Spinta Precision Allegiance Slide for Glock 19 Gen 3 (Rainier Arms Exclusive)
    Special Price $286.00 Regular Price $370.00
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  7. Rainier Arms Exclusive Spinta Precision Allegiance Slide for Glock 19 Gen 5 (Rainier Arms Exclusive)
    Spinta Precision Allegiance Slide for Glock 19 Gen 5 (Rainier Arms Exclusive)
    Special Price $286.00 Regular Price $370.00
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  8. Taran Tactical Innovations Carry Magazine Base Pad for Glock 9/40 - Black
    Taran Tactical Innovations Carry Magazine Base Pad for Glock 9/40 - Black
    $25.99
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  9. Taran Tactical Innovations Full Size Competition Magwell for Glock Gen 3 - Flat Black
    Taran Tactical Innovations Full Size Competition Magwell for Glock Gen 3 - Flat Black
    $104.99
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  10. Taran Tactical Innovations Compact Carry Magwell for Glock Gen 3 - Flat Black
    Taran Tactical Innovations Compact Carry Magwell for Glock Gen 3 - Flat Black
    $94.99
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  11. Taran Tactical Innovations Full Size Carry Magwell for Glock Gen 3 - Flat Black
    Taran Tactical Innovations Full Size Carry Magwell for Glock Gen 3 - Flat Black
    $94.99
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  12. Taran Tactical Innovations Compact Carry Magwell for Glock Gen 5 - Flat Black
    Taran Tactical Innovations Compact Carry Magwell for Glock Gen 5 - Flat Black
    $94.99
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  13. Taran Tactical Innovations Full Size Carry Magwell for Glock Gen 5 - Flat Black
    Taran Tactical Innovations Full Size Carry Magwell for Glock Gen 5 - Flat Black
    $94.99
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  14. Taran Tactical Innovations Grand Master Connector Kit for Gen 3 Glock - Competition
    Taran Tactical Innovations Grand Master Connector Kit for Gen 3 Glock - Competition
    $44.99
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  15. Taran Tactical Innovations Grand Master Connector Kit for Gen 4 Glock - Competition
    Taran Tactical Innovations Grand Master Connector Kit for Gen 4 Glock - Competition
    $44.99
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  16. Taran Tactical Innovations Grand Master Connector Kit for Gen 4 Glock - Carry
    Taran Tactical Innovations Grand Master Connector Kit for Gen 4 Glock - Carry
    $39.99
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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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