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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. Springer Precision Sig P320 9mm Open Compensator (1/2 x 28)
    Springer Precision Sig P320 9mm Open Compensator (1/2 x 28)
    $95.00
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  2. Springer Precision Sig P320 9mm Open Compensator (M13.5 x 1 LH)
    Springer Precision Sig P320 9mm Open Compensator (M13.5 x 1 LH)
    $95.00
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  3. 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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  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. Sig Sauer XRAY3 Day/Night Super - Tall Sight Set
    Sig Sauer XRAY3 Day/Night Super - Tall Sight Set
    $99.99
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  6. Sig Sauer X-RAY3 Day/Night Sights
    Sig Sauer X-RAY3 Day/Night Sights
    $99.99
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  7. Glock OEM 9mm and .40SW Performance Trigger
    Glock OEM 9mm and .40SW Performance Trigger
    $94.99
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  8. Tactical Development Top Charging Handle For Sig Sauer P320
    Tactical Development Top Charging Handle For Sig Sauer P320
    $90.25
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  9. DPM Systems Technologies Mechanical Recoil Reduction System - Shadow 2 Compact
    DPM Systems Technologies Mechanical Recoil Reduction System - Shadow 2 Compact
    $98.47
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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 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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  13. DPM Systems Technologies Recoil Reduction System - Sig Sauer P320 X-Compact
    DPM Systems Technologies Recoil Reduction System - Sig Sauer P320 X-Compact
    $90.06
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  14. 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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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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