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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.

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  6. Lantac Fluted Threaded Barrel For Glock 19
    Lantac Fluted Threaded Barrel For Glock 19
    Out of stock
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  8. Gun Pro Delta 1 Sight Set For Glock
    Gun Pro Delta 1 Sight Set For Glock
    $84.00
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  9. Tyrant Designs Threaded Barrel For Glock 19
    Tyrant Designs Threaded Barrel For Glock 19
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  10. Tyrant Designs Suppressor Height Sights for Glock 9/40
    Tyrant Designs Suppressor Height Sights for Glock 9/40
    $62.95
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  12. Rainier Arms Exclusive Spinta Precision Allegiance Slide for Glock 17L Gen 3 (Rainier Arms Exclusive)
    Spinta Precision Allegiance Slide for Glock 17L Gen 3 (Rainier Arms Exclusive)
    Special Price $318.50 Regular Price $400.00
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  14. Lone Wolf Arms 3.5LB Connector for Glock 42/43
    Lone Wolf Arms 3.5LB Connector for Glock 42/43
    $18.86
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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. $0.00 - $999.99 92 items
  2. $1,000.00 and above 4 items
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  1. Basepad 1 item
  2. Connector 1 item
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  4. Handgun Barrel 23 items
  5. Holster 1 item
  6. Locking Block 1 item
  7. Magazine Catch 1 item
  8. Magazine Release 3 items
  9. Magwell 6 items
  10. Parts Kit 2 items
  11. Pistol Frame 1 item
  12. Pistol Part 11 items
  13. Pistol Sights 6 items
  14. Recoil Spring 1 item
  15. Slide 21 items
  16. Trigger 12 items
  17. Upper Parts Kit 2 items
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  1. 1/2x28 (9mm) 15 items
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  1. 1:10 15 items
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  2. Out of stock 95 items Remove This 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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