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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. Agency Arms Syndicate S-2 Stripped Slide For Glock 19 Gen 3
    Agency Arms Syndicate S-2 Stripped Slide For Glock 19 Gen 3
    $550.00
    Out of stock
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  2. Lantac Razorback Windowed Stripped Slide For Glock 19 Gen 3
    Lantac Razorback Windowed Stripped Slide For Glock 19 Gen 3
    $431.99
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  3. L2D Combat Catalyst Stripped Slide For Glock 19 Gen 3
    L2D Combat Catalyst Stripped Slide For Glock 19 Gen 3
    Out of stock
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  4. True Precision Stripped Slide For Glock 43 w/ RMSc Cut - Black DLC
    True Precision Stripped Slide For Glock 43 w/ RMSc Cut - Black DLC
    $375.25
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  5. Norsso Sig Sauer P320SC Sub/X-Compact pBentham RMR Slide - Black DLC
    Norsso Sig Sauer P320SC Sub/X-Compact pBentham RMR Slide - Black DLC
    $369.55
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  6. Norsso Sig Sauer P320SC Sub/X-Compact Reptile RMR Slide - Black DLC
    Norsso Sig Sauer P320SC Sub/X-Compact Reptile RMR Slide - Black DLC
    $417.05
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  7. Agency Arms Sig P320 Compact/X-Carry Gavel Slide - DLC
    Agency Arms Sig P320 Compact/X-Carry Gavel Slide - DLC
    $825.00
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  8. Agency Arms Urban Combat Stripped Slide w/ AOS For Glock 19 Gen 3 - DLC
    Agency Arms Urban Combat Stripped Slide w/ AOS For Glock 19 Gen 3 - DLC
    $950.00
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  9. Agency Arms Sig P320 Compact/X-Carry Syndicate S2 Slide
    Agency Arms Sig P320 Compact/X-Carry Syndicate S2 Slide
    $575.00
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  10. Agency Arms Sig P320 Compact/X-Carry Syndicate S1 Field Slide - DLC
    Agency Arms Sig P320 Compact/X-Carry Syndicate S1 Field Slide - DLC
    $575.00
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  11. Agency Arms Sig P320 Compact/X-Carry Syndicate S1 Urban AOS Slide
    Agency Arms Sig P320 Compact/X-Carry Syndicate S1 Urban AOS Slide
    $575.00
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  12. Norsso Sig Sauer P320C Reptile Ported RMR Slide - Black DLC
    Norsso Sig Sauer P320C Reptile Ported RMR Slide - Black DLC
    $436.05
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  13. Norsso CZ P-10C Reptile Ported R2 RMR Slide - Black DLC
    Norsso CZ P-10C Reptile Ported R2 RMR Slide - Black DLC
    $436.05
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  14. Faxon Firearms Hellfire Slide For Glock 19 w/ RMR Optic Cut - DLC
    Faxon Firearms Hellfire Slide For Glock 19 w/ RMR Optic Cut - DLC
    $293.48
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  15. Trinity Nevada PiRho Sig Sauer P320 Complete Slide - DLC Slide RMR / TiN Barrel
    Trinity Nevada PiRho Sig Sauer P320 Complete Slide - DLC Slide RMR / TiN Barrel
    $1,645.00
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  16. Norsso Reptile TP RMR Slide For Glock 19 Gen 3 - Black DLC
    Norsso Reptile TP RMR Slide For Glock 19 Gen 3 - Black DLC
    $483.55
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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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