Pursue Your Passion
My Cart

Discord

Menu
Account

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

Dark mode is

View as Grid List

Items 17-32 of 179

Page
per page
  6. 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
    Add to Wish List Add to Compare
  7. Grayguns SIG Sauer P365XL Laser-Sculpted Grip Module
    Grayguns SIG Sauer P365XL Laser-Sculpted Grip Module
    $120.00 - $170.00
    Add to Wish List Add to Compare
  9. Killer Innovations Sig P320 X-Carry Velocity Non-Threaded Barrel
    Killer Innovations Sig P320 X-Carry Velocity Non-Threaded Barrel
    $249.00
    Add to Wish List Add to Compare
  12. Rainier Arms Exclusive Danger Close Armament Silicon Carbide Sig Sauer P320 X-Series Compact Size Grip Module - Medium
    Danger Close Armament Silicon Carbide Sig Sauer P320 X-Series Compact Size Grip Module - Medium
    $300.00 - $375.00
    Add to Wish List Add to Compare
  14. Mirzon Sig Sauer P320 Enhanced Grip Module Magwell
    Mirzon Sig Sauer P320 Enhanced Grip Module Magwell
    $65.99 - $79.95
    Add to Wish List Add to Compare
  16. Rainier Arms Exclusive Danger Close Armament Silicon Carbide Sig Sauer P320 X-Series Full Size Grip Module - Medium
    Danger Close Armament Silicon Carbide Sig Sauer P320 X-Series Full Size Grip Module - Medium
    $300.00 - $375.00
    Add to Wish List Add to Compare
View as Grid List

Items 17-32 of 179

Page
per page

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.

Shop By
Now Shopping by
  1. Platform Sig Sauer Remove This Item
  2. Price $0.00 - $999.99 Remove This Item
Clear All
Shopping Options
Barrel Length
  1. 3.1" 2 items
  2. 3.54" 1 item
  3. 3.6" 2 items
  4. 3.7" 1 item
  5. 3.86" 1 item
  6. 3.9" 6 items
  7. 4.57" 1 item
Barrel Profile
  1. SDM 1 item
Caliber
  1. 9mm 25 items
Color
Configuration
  1. Right Hand 1 item
  2. Standard 1 item
  3. P320 8 items
  4. P365 4 items
  5. P365XL 3 items
  6. Handgun 1 item
Finish
  1. Black/Black 2 items
  2. Black/Nickel 2 items
  3. Black/TiN 2 items
  4. DLC 9 items
  5. MDC (Gray) 1 item
  6. Nitride 7 items
  7. Anodize 1 item
  8. PVD/CVD 3 items
  9. Quench Polish Quench (QPQ) 1 item
  10. Titanium Nitride (TiN) 6 items
  11. Molecular Dense Coating (MDC) 2 items
Is Firearms?
  1. No 179 items
Magazine Capacity
  1. 6rd 1 item
Manufacturer
  1. Agency Arms 5 items
  2. Align Tactical 3 items
  3. Apex Tactical Specialties 2 items
  4. ARC Division 1 item
  5. CAA 1 item
  6. Danger Close Armament 8 items
  7. DPM Systems Technologies 15 items
  8. Empire 2 items
  9. Faxon Firearms 8 items
  10. GoGun USA 3 items
  11. Grayguns 21 items
  12. Grey Ghost Precision 1 item
  13. Griffin Armament 2 items
  14. Killer Innovations 12 items
  15. L2D Combat 1 item
  16. Mirzon 3 items
  17. Mischief Machine 2 items
  18. NIGHT FISION 3 items
  19. Norsso 7 items
  20. Obsidian Arms 2 items
  21. Rainier Arms, LLC 2 items
  22. Shalotek 16 items
  23. Sig Sauer 32 items
  24. Springer Precision 1 item
  25. Strike Industries 1 item
  26. Tactical Development 2 items
  27. The Gun Co. 1 item
  28. True Precision 11 items
  29. Tyrant Designs 12 items
Model
  1. Glock 19 1 item
  2. Glock 23 1 item
  3. Sig P22X 3 items
  4. Sig P220 7 items
  5. Sig P226 8 items
  6. Sig P228 3 items
  7. Sig P229 4 items
  8. Sig P238 1 item
  9. Sig P320 96 items
  10. Sig P365 37 items
  11. Sig P365X 8 items
  12. Sig P365XL 22 items
  13. Sig P365 X-Macro 3 items
  14. Sig P938 2 items
Optic Footprint
  1. Shield RMSc 5 items
  2. Trijicon RMR 2 items
Option
  1. V2 1 item
  2. Sig Sauer P Series 1 item
  3. Glock 2 items
  4. Sig Sauer 58 items
Price
  1. $0.00 - $99.99 85 items
  2. $100.00 - $199.99 40 items
  3. $200.00 - $299.99 25 items
  4. $300.00 - $399.99 12 items
  5. $400.00 - $499.99 12 items
  6. $700.00 - $799.99 2 items
  7. $800.00 and above 3 items
Product Type
  1. Accessory 2 items
  2. BackPack 1 item
  3. Backplate 1 item
  4. Barrel 24 items
  5. Basepad 3 items
  6. Compensator 5 items
  7. Extended Slide Stop 2 items
  8. Failure Resistant Extractor 1 item
  9. Fire Control Unit 2 items
  10. Grip Module 16 items
  11. Guide Rod 11 items
  12. Handgun Barrel 9 items
  13. Handgun Sights 3 items
  14. Laser 1 item
  15. Magazine 1 item
  16. Magazine Release 5 items
  17. Magwell 9 items
  18. Parts Kit 2 items
  19. Pistol Accessory 3 items
  20. Pistol Frame 9 items
  21. Pistol Grip 1 item
  22. Pistol Part 7 items
  23. Pistol Sights 2 items
  24. Recoil Spring 15 items
  25. Slide 34 items
  26. Slide Parts Kit 2 items
  27. Spring 1 item
  28. Stabilizer Kit 1 item
  29. Take Down / Pivot Pins 1 item
  30. Trigger 11 items
Size
  1. Small 1 item
  2. Large 2 items
  3. Micro-Compact 1 item
  4. X-Compact 3 items
  5. Sub-Compact 1 item
  6. Compact 3 items
  7. Carry 1 item
  8. Full 3 items
Thread Pitch
  1. 1/2x28 11 items
Threaded
  1. Yes 2 items
  2. No 9 items
Twist Rate
  1. 1:9 1 item
  2. 1:10 14 items
Stock Status
  1. In stock 179 items Remove This Item
My Wish List
Last Added Items
  1. Add to Cart
    Remove This Item
Go to Wish List
You have no items in your wish list.

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.

Google Customer Reviews Google Customer Reviews