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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 STI/SVI 2011 140/170mm Base Pad
    Springer Precision STI/SVI 2011 140/170mm Base Pad
    $22.50
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  2. Springer Precision Sig Sauer P320 X5 Steel Guide Rod for 1911 Spring
    Springer Precision Sig Sauer P320 X5 Steel Guide Rod for 1911 Spring
    $25.00
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  5. Springer Precision for Springfield XDM 9/40 ESP Magwell
    Springer Precision for Springfield XDM 9/40 ESP Magwell
    $60.00
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  6. Springer Precision P320 Extended Magazine Release - Production/ESP
    Springer Precision P320 Extended Magazine Release - Production/ESP
    Out of stock
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  7. Springer Precision Sig Sauer M17/X-Compact/X-Five LEGION RMR Mount
    Springer Precision Sig Sauer M17/X-Compact/X-Five LEGION RMR Mount
    $55.00
    Out of stock
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  8. 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
    Out of stock
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  9. Springer Precision SIG P320/P250 9/40 EZ 140mm Base Pads w/ Power Spring
    Springer Precision SIG P320/P250 9/40 EZ 140mm Base Pads w/ Power Spring
    Out of stock
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  10. 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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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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