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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. Ascalon Arms CZ Scorpion EVO Trigger Shoe - Black
    Ascalon Arms CZ Scorpion EVO Trigger Shoe - Black
    $35.99
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  2. Taran Tactical Innovations Grand Master Connector Kit for Gen 4 Glock - Carry
    Taran Tactical Innovations Grand Master Connector Kit for Gen 4 Glock - Carry
    $39.99
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  3. Taran Tactical Innovations Grand Master Connector Kit for Gen 5 Glock - Carry
    Taran Tactical Innovations Grand Master Connector Kit for Gen 5 Glock - Carry
    $39.99
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  4. Tyrant Design Sig Sauer P365 Magazine Extension
    Tyrant Design Sig Sauer P365 Magazine Extension
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  5. Angstadt Arms 9mm 3-Lug Adapter - 1/2x28
    Angstadt Arms 9mm 3-Lug Adapter - 1/2x28
    $36.00
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  6. Stoeger Industries STR-9 9MM Magazine - 15RD
    Stoeger Industries STR-9 9MM Magazine - 15RD
    $35.00
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  7. SLR M-LOK RAIL SECTION- 5 Slots
    SLR M-LOK RAIL SECTION- 5 Slots
    $33.59
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  8. SLR M-LOK Rail SECTION-9 slots
    SLR M-LOK Rail SECTION-9 slots
    $30.39
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  9. SLR M-LOK RAIL SECTION- 3 Slots
    SLR M-LOK RAIL SECTION- 3 Slots
    $33.59
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  10. Shooters Element CZ Scorpion Flat Trigger - Black
    Shooters Element CZ Scorpion Flat Trigger - Black
    $33.25
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  11. Shooters Element CZ Scorpion Flat Trigger - Red
    Shooters Element CZ Scorpion Flat Trigger - Red
    $37.99
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  12. Springer Precision P320 Extended Magazine Release - Production/ESP
    Springer Precision P320 Extended Magazine Release - Production/ESP
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  13. Tyrant Designs +4/5 9mm/.40 Magazine Extension For Glock 19/23 - Black
    Tyrant Designs +4/5 9mm/.40 Magazine Extension For Glock 19/23 - Black
    $35.95
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  14. 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
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  15. L2D Combat Stainless Steel Fluted Guide Rod Kit Standard Frame for Glock Gen 3
    L2D Combat Stainless Steel Fluted Guide Rod Kit Standard Frame for Glock Gen 3
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  16. Lantac Ti-PIN Titanium Frame Pins For Glock Gen 1-4
    Lantac Ti-PIN Titanium Frame Pins For Glock Gen 1-4
    $35.99
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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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