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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. Faxon Firearms Match Series Sig Sauer P365XL 9mm Threaded Barrel
    Faxon Firearms Match Series Sig Sauer P365XL 9mm Threaded Barrel
    Out of stock
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  2. Rainier Arms Exclusive Danger Close Armament DCA-365 Select Match 9mm Barrel For Sig P365 - (3.1")
    Danger Close Armament DCA-365 Select Match 9mm Barrel For Sig P365 - (3.1")
    Out of stock
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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
    Out of stock
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  4. Killer Innovations Sig P320 X-Carry Velocity Threaded Barrel
    Killer Innovations Sig P320 X-Carry Velocity Threaded Barrel
    Out of stock
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  5. L2D Combat P320 X-Compact Precision Match 9mm Barrel - 3.6"
    L2D Combat P320 X-Compact Precision Match 9mm Barrel - 3.6"
    Out of stock
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  6. L2D Combat Precision Match Fluted Barrel for Glock 34 Gen 3/4
    L2D Combat Precision Match Fluted Barrel for Glock 34 Gen 3/4
    Out of stock
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  7. L2D Combat Precision Match Fluted Threaded Barrel For Glock 17 Gen 5
    L2D Combat Precision Match Fluted Threaded Barrel For Glock 17 Gen 5
    Out of stock
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  8. Griffin Armament Smith and Wesson M&P Shield Threaded Barrel W/ Micro Carry Comp
    Griffin Armament Smith and Wesson M&P Shield Threaded Barrel W/ Micro Carry Comp
    $186.00
    Out of stock
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  9. L2D Combat Precision Match Fluted Threaded Barrel For Glock 17
    L2D Combat Precision Match Fluted Threaded Barrel For Glock 17
    Out of stock
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  10. L2D Combat Precision Match Fluted Threaded Barrel For Glock 19
    L2D Combat Precision Match Fluted Threaded Barrel For Glock 19
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  11. L2D Combat Precision Match S&W M&P Shield 9MM Barrel - Fluted Bronze
    L2D Combat Precision Match S&W M&P Shield 9MM Barrel - Fluted Bronze
    $171.00
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  12. Griffin Armament ATM Threaded Barrel For Glock 43 w/ Micro Carry Comp
    Griffin Armament ATM Threaded Barrel For Glock 43 w/ Micro Carry Comp
    $186.00
    Out of stock
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  13. ARC Division Arc9 Match Series Fluted/Threaded Barrel For Glock 19
    ARC Division Arc9 Match Series Fluted/Threaded Barrel For Glock 19
    Out of stock
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  14. Battle Arms Development ONE:1 416R Threaded Barrel For Glock 19 - Black Nitride
    Battle Arms Development ONE:1 416R Threaded Barrel For Glock 19 - Black Nitride
    $199.00
    Out of stock
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  15. Battle Arms Development ONE:1 4140 Barrel For Glock 19 - Black Nitride
    Battle Arms Development ONE:1 4140 Barrel For Glock 19 - Black Nitride
    $185.99
    Out of stock
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  16. Griffin Armament ATM Sig Sauer P320 Compact Threaded Barrel w/ Micro Carry Comp
    Griffin Armament ATM Sig Sauer P320 Compact Threaded Barrel w/ Micro Carry Comp
    $186.00
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16 Items

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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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  1. Product Type Barrel Remove This Item
  2. Price $100.00 - $199.99 Remove This Item
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Barrel Length
  1. 3.6" 1 item
  2. 4.57" 1 item
Caliber
  1. 9mm 4 items
Color
Configuration
  1. P320 1 item
  2. P365 1 item
  3. P365XL 1 item
Finish
  1. Black Nitride 2 items
  2. Bronze 1 item
  3. Chameleon 1 item
  4. DLC 1 item
  5. Titanium Nitride (TiN) 3 items
Is Firearms?
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  1. ARC Division 1 item
  2. Battle Arms Development 2 items
  3. Danger Close Armament 1 item
  4. Faxon Firearms 2 items
  5. Griffin Armament 3 items
  6. Killer Innovations 1 item
  7. L2D Combat 6 items
Model
  1. Glock 17 2 items
  2. Glock 19 5 items
  3. Glock 34 1 item
  4. Glock 43 1 item
  5. Sig P320 2 items
  6. Sig P365 1 item
  7. Sig P365XL 1 item
  8. S&W M&P Shield 1 item
Option
  1. Sig Sauer P Series 1 item
  2. Glock 7 items
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  4. Smith & Wesson 1 item
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  3. Smith & Wesson 1 item
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  5. $170.00 - $179.99 3 items
  6. $180.00 - $189.99 5 items
  7. $190.00 and above 3 items
Thread Pitch
  1. 1/2x28 2 items
Threaded
  1. Yes 1 item
  2. No 2 items
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  1. 1:10 1 item
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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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