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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. 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
    Out of stock
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  2. 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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  3. 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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  4. 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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  5. 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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  6. 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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  7. 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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  8. 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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  9. Rainier Arms Exclusive ShaloTek Sig Sauer P365 Integrally Compensated RMSc Slide - XC Sentinel LoPro
    ShaloTek Sig Sauer P365 Integrally Compensated RMSc Slide - XC Sentinel LoPro
    $270.00
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  10. ShaloTek Sig Sauer P365 Integrally Compensated RMSc Slide - XXLC Sentinel
    ShaloTek Sig Sauer P365 Integrally Compensated RMSc Slide - XXLC Sentinel
    $285.00
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  11. ShaloTek Sig Sauer P365 Integrally Compensated RMSc Slide - XLC Sentinel
    ShaloTek Sig Sauer P365 Integrally Compensated RMSc Slide - XLC Sentinel
    $280.00
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  12. Rainier Arms Exclusive ShaloTek Sig Sauer P365 Integrally Compensated RMSc Slide - XLC Sentinel LoPro
    ShaloTek Sig Sauer P365 Integrally Compensated RMSc Slide - XLC Sentinel LoPro
    $275.00
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  13. Rainier Arms Exclusive ShaloTek Sig Sauer P365 Integrally Compensated RMSc Slide - XXLC Sentinel LoPro
    ShaloTek Sig Sauer P365 Integrally Compensated RMSc Slide - XXLC Sentinel LoPro
    $280.00
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  14. ShaloTek Sig Sauer P365 Integrally Compensated RMSc Slide - XC Sentinel
    ShaloTek Sig Sauer P365 Integrally Compensated RMSc Slide - XC Sentinel
    $275.00
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  15. Killer Innovations Velocity V1 Stripped Slide For Sig 365 XL
    Killer Innovations Velocity V1 Stripped Slide For Sig 365 XL
    Out of stock
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  16. Norsso Sig Sauer P320 Sub/X-Compact Vector RMR Slide - Black DLC
    Norsso Sig Sauer P320 Sub/X-Compact Vector RMR Slide - Black DLC
    $417.05
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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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