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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. Agency Arms 9mm Syndicate Trigger For Glock - Black
    Agency Arms 9mm Syndicate Trigger For Glock - Black
    $60.00
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  2. Agency Arms Syndicate Trigger For Glock Gen 5
    Agency Arms Syndicate Trigger For Glock Gen 5
    $60.00
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  3. Lantac E-CTG9 Upgrade Trigger For Glock 17/19 - Gen 4
    Lantac E-CTG9 Upgrade Trigger For Glock 17/19 - Gen 4
    $141.29
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  4. Lantac E-CTG9 Upgrade Trigger For Glock 17/19 - Gen 1-3
    Lantac E-CTG9 Upgrade Trigger For Glock 17/19 - Gen 1-3
    $141.29
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  5. 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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  6. Apex Tactical Specialties Action Enhancement Kit for CZ Shadow 2
    Apex Tactical Specialties Action Enhancement Kit for CZ Shadow 2
    $156.75
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  7. Apex Tactical Specialties Springfield Hellcat Action Enhancement Trigger - Red
    Apex Tactical Specialties Springfield Hellcat Action Enhancement Trigger - Red
    $85.50
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  8. Ascalon Arms CZ Scorpion EVO Trigger Shoe - Black
    Ascalon Arms CZ Scorpion EVO Trigger Shoe - Black
    $35.99
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  9. 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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  10. Apex Tactical Specialties M&P 2.0 Flat Face Forward Set Trigger Kit - Black
    Apex Tactical Specialties M&P 2.0 Flat Face Forward Set Trigger Kit - Black
    $104.50
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  11. Empire Stiletto Trigger For Sig Sauer P320 - Black
    Empire Stiletto Trigger For Sig Sauer P320 - Black
    $84.99
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  12. Apex Tactical Specialties Polymer Enhancement Trigger Kit for Glock Gen 3 & 4
    Apex Tactical Specialties Polymer Enhancement Trigger Kit for Glock Gen 3 & 4
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  13. Glock OEM 9mm and .40SW Performance Trigger
    Glock OEM 9mm and .40SW Performance Trigger
    $94.99
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  14. Tactical Development Dual Enhanced Flat Trigger For Sig Sauer P365
    Tactical Development Dual Enhanced Flat Trigger For Sig Sauer P365
    Out of stock
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  15. Apex Tactical Specialties Action Enhancement Trigger Kit for Springfield SA-35 / Browning Hi-Power Pistols
    Apex Tactical Specialties Action Enhancement Trigger Kit for Springfield SA-35 / Browning Hi-Power Pistols
    $190.00
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  16. Apex Tactical Specialties S&W M&P M2.0 Flat Faced Forward Set Trigger Kit
    Apex Tactical Specialties S&W M&P M2.0 Flat Faced Forward Set Trigger Kit
    $171.00
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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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