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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. Fortis MFG RED Brake 7.62mm Black Nitride
    Fortis MFG RED Brake 7.62mm Black Nitride
    $85.45
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  2. Agency Arms Drop In Trigger For Glock
    Agency Arms Drop In Trigger For Glock
    As low as $135.00
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  3. Apex Tactical Specialties M&P Shield Action Enhancement Trigger
    Apex Tactical Specialties M&P Shield Action Enhancement Trigger
    $80.75
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  4. Trijicon M&P HD Night Sight Set-Yellow Front Outline
    Trijicon M&P HD Night Sight Set-Yellow Front Outline
    $170.00
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  5. Strike Industries Enhanced Magazine Plate for Glock 43
    Strike Industries Enhanced Magazine Plate for Glock 43
    $11.95
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  6. Zev Technologies Titanium Pin Kit For Glock
    Zev Technologies Titanium Pin Kit For Glock
    As low as $31.36
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  7. Modular Evolution Evopod Bi-Pod Barricade Buster
    Modular Evolution Evopod Bi-Pod Barricade Buster
    Special Price $69.92 Regular Price $93.99
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  8. Odin Works ATLAS adjustable recoil reducing compensator 5.56
    Odin Works ATLAS adjustable recoil reducing compensator 5.56
    $94.05
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  9. Tyrant Designs LWP Grip
    Tyrant Designs LWP Grip
    As low as $94.45
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  10. Weapon Evolution - Dragon Patch
    Weapon Evolution - Dragon Patch
    $4.95
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  11. Apex Tactical Specialties M&P Flat-Faced Forward Set Sear & Trigger Kit - Red
    Apex Tactical Specialties M&P Flat-Faced Forward Set Sear & Trigger Kit - Red
    $175.75
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  12. Dark Hour Defense GSOD For Glock 17
    Dark Hour Defense GSOD For Glock 17
    Special Price $74.92 Regular Price $94.09
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  13. Faxon Firearms Flamed Barrel For Glock 19 - Nitride
    Faxon Firearms Flamed Barrel For Glock 19 - Nitride
    $170.05
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  14. Faxon Firearms Flamed Barrel For Glock 17 - TiN
    Faxon Firearms Flamed Barrel For Glock 17 - TiN
    $198.55
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  15. Night Fision Tritium Sight Set For Glock - Square Rear
    Night Fision Tritium Sight Set For Glock - Square Rear
    As low as $97.20
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  16. Killer Innovations Universal Velocity Magwell For Glock 17/22/31 -
    Killer Innovations Universal Velocity Magwell For Glock 17/22/31 -
    As low as $94.49
    +2
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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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