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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. Taran Tactical Innovations Grand Master Connector Kit for Gen 5 Glock - Competition
    Taran Tactical Innovations Grand Master Connector Kit for Gen 5 Glock - Competition
    $44.99
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  2. Taran Tactical Innovations Grand Master Connector Kit for Gen 5 Glock - Carry
    Taran Tactical Innovations Grand Master Connector Kit for Gen 5 Glock - Carry
    $39.99
    Out of stock
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  3. 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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  4. L2D Combat Tyton Stripped Slide for Glock 17 - DLC Black
    L2D Combat Tyton Stripped Slide for Glock 17 - DLC Black
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  5. L2D Combat Tyton Stripped Slide For Glock 19 Gen 5 - DLC Black
    L2D Combat Tyton Stripped Slide For Glock 19 Gen 5 - DLC Black
    Special Price $314.99 Regular Price $450.00
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  6. Glock OEM 9mm and .40SW Performance Trigger
    Glock OEM 9mm and .40SW Performance Trigger
    $94.99
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  7. Tyrant Designs Magwell for Glock 17 Gen 5 - Black
    Tyrant Designs Magwell for Glock 17 Gen 5 - Black
    $62.95
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  8. Apex Tactical Specialties Action Enhancement Trigger Kit For Glock - Gen 3/4 - Red
    Apex Tactical Specialties Action Enhancement Trigger Kit For Glock - Gen 3/4 - Red
    $137.75
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  9. 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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  10. 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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  11. Rainier Arms Micro MARS (Magazine Advanced Release System) for Glock 43/42
    Rainier Arms Micro MARS (Magazine Advanced Release System) for Glock 43/42
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  12. Rainier Arms Fiber Optic Suppressor Height Sight Set For Glock
    Rainier Arms Fiber Optic Suppressor Height Sight Set For Glock
    $50.00
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  13. Arms Republic Slide Parts Kit for Glock 17 Gen 3
    Arms Republic Slide Parts Kit for Glock 17 Gen 3
    $59.99
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  14. Agency Arms Urban Combat Stripped Slide w/ AOS For Glock 19 Gen 3 - DLC
    Agency Arms Urban Combat Stripped Slide w/ AOS For Glock 19 Gen 3 - DLC
    $950.00
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  15. Rainier Arms Fiber Optic Sight Set For Glock
    Rainier Arms Fiber Optic Sight Set For Glock
    $50.00
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  16. L2D Combat Catalyst Stripped Slide For Glock 19 Gen 3
    L2D Combat Catalyst Stripped Slide For Glock 19 Gen 3
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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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