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 1-16 of 110

Page
per page
  1. Arms Republic 9mm Compensator for CZ P-10 - Black
    Arms Republic 9mm Compensator for CZ P-10 - Black
    $59.95
    Out of stock
    Add to Wish List Add to Compare
  2. Tyrant Designs Magwell For Polymer 80 - Black w/ Gold Screw
    Tyrant Designs Magwell For Polymer 80 - Black w/ Gold Screw
    $62.95
    Out of stock
    Add to Wish List Add to Compare
  3. Rainier Arms Exclusive Nomad Defense Hybrid Frame Parts Kit for Glock Gen 4/5
    Nomad Defense Hybrid Frame Parts Kit for Glock Gen 4/5
    $85.00
    Out of stock
    Add to Wish List Add to Compare
  4. Sig Sauer X-RAY3 Day/Night Sights
    Sig Sauer X-RAY3 Day/Night Sights
    $99.99
    Out of stock
    Add to Wish List Add to Compare
  5. Faxon Firearms EXOS-513 Pistol Compensator for Glock and FX-19
    Faxon Firearms EXOS-513 Pistol Compensator for Glock and FX-19
    $78.20
    Out of stock
    Add to Wish List Add to Compare
  6. Faxon Firearms EXOS-515 Pistol Compensator for Sig Sauer P320
    Faxon Firearms EXOS-515 Pistol Compensator for Sig Sauer P320
    $78.20
    Out of stock
    Add to Wish List Add to Compare
  7. Rainier Arms Exclusive Nomad Defense Magwell Extension and Backstrap Combo - 9F Frame
    Nomad Defense Magwell Extension and Backstrap Combo - 9F Frame
    $79.00
    Out of stock
    Add to Wish List Add to Compare
  8. Apex Tactical Specialties Springfield Hellcat Action Enhancement Trigger - Red
    Apex Tactical Specialties Springfield Hellcat Action Enhancement Trigger - Red
    $85.50
    Out of stock
    Add to Wish List Add to Compare
  9. Rainier Arms Fiber Optic Suppressor Height Sight Set For Glock - LOGO
    Rainier Arms Fiber Optic Suppressor Height Sight Set For Glock - LOGO
    $50.00
    Out of stock
    Add to Wish List Add to Compare
  10. Wilson Combat WCP320 Full Grip Module w/ Standard Safety - Tan
    Wilson Combat WCP320 Full Grip Module w/ Standard Safety - Tan
    $67.95
    Out of stock
    Add to Wish List Add to Compare
  11. Ascalon Arms CZ Scorpion EVO Trigger Shoe - Black
    Ascalon Arms CZ Scorpion EVO Trigger Shoe - Black
    $35.99
    Out of stock
    Add to Wish List Add to Compare
  12. Apex Tactical Specialties Action Enhancement Trigger Kit for Glocks - G43, 43x, 48 - Black
    Apex Tactical Specialties Action Enhancement Trigger Kit for Glocks - G43, 43x, 48 - Black
    $99.75
    Out of stock
    Add to Wish List Add to Compare
  13. Apex Tactical Specialties Enhanced Short Paddle Slide Release - P10C/F/S
    Apex Tactical Specialties Enhanced Short Paddle Slide Release - P10C/F/S
    $85.50
    Out of stock
    Add to Wish List Add to Compare
  14. Arms Republic 9mm Compensator for Glock Gen 3 - Black
    Arms Republic 9mm Compensator for Glock Gen 3 - Black
    $59.95
    Out of stock
    Add to Wish List Add to Compare
  15. Faxon Firearms EXOS-525 Pistol Compensator for Sig Sauer P365/P365XL
    Faxon Firearms EXOS-525 Pistol Compensator for Sig Sauer P365/P365XL
    $78.20
    Out of stock
    Add to Wish List Add to Compare
  16. HB Industries Grand Power Stribog Modular Safety Selector Kit
    HB Industries Grand Power Stribog Modular Safety Selector Kit
    $68.31
    Out of stock
    Add to Wish List Add to Compare
View as Grid List

Items 1-16 of 110

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. Price $0.00 - $99.99 Remove This Item
Clear All
Shopping Options
Barrel Length
  1. 3.7" 1 item
Barrel Profile
  1. SDM 1 item
Caliber
  1. 9mm 9 items
Category
  1. Pistol parts 103 items
Color
Configuration
  1. Gen 3 1 item
  2. Handgun 2 items
Finish
  1. Black/Black 2 items
  2. Black/Nickel 1 item
  3. Black/TiN 2 items
  4. Nitride 2 items
  5. Anodize 2 items
  6. PVD/CVD 2 items
  7. Titanium Nitride (TiN) 3 items
Is Firearms?
  1. No 110 items
Magazine Capacity
  1. 7rd 1 item
  2. 15rd 1 item
Manufacturer
  1. Agency Arms 2 items
  2. Angstadt Arms 1 item
  3. Apex Tactical Specialties 9 items
  4. Arms Republic 3 items
  5. Ascalon Arms 1 item
  6. DPM Systems Technologies 2 items
  7. Empire 5 items
  8. Faxon Firearms 4 items
  9. Glock 1 item
  10. GoGun USA 1 item
  11. HB Industries 4 items
  12. L2D Combat 4 items
  13. Lantac 4 items
  14. Midwest Industries 1 item
  15. Next Level Armament 1 item
  16. Nomad Defense 4 items
  17. Norsso 1 item
  18. Rainier Arms, LLC 6 items
  19. Shalotek 1 item
  20. Sig Sauer 10 items
  21. SLR Rifleworks 3 items
  22. Springer Precision 5 items
  23. Stoeger 1 item
  24. Tactical Development 8 items
  25. Taran Tactical Innovations 11 items
  26. Tyrant Designs 12 items
  27. Wilson Combat 1 item
Model
  1. CZ Scorpion 1 item
  2. CZ P-10 3 items
  3. FNH 509 1 item
  4. Glock 17 11 items
  5. Glock 19 12 items
  6. Glock 19X 5 items
  7. Glock 20 3 items
  8. Glock 21 3 items
  9. Glock 22 7 items
  10. Glock 23 7 items
  11. Glock 24 5 items
  12. Glock 25 3 items
  13. Glock 26 7 items
  14. Glock 27 6 items
  15. Glock 28 3 items
  16. Glock 29 3 items
  17. Glock 30 3 items
  18. Glock 31 7 items
  19. Glock 32 6 items
  20. Glock 33 6 items
  21. Glock 34 8 items
  22. Glock 35 7 items
  23. Glock 36 1 item
  24. Glock 37 3 items
  25. Glock 38 3 items
  26. Glock 39 3 items
  27. Glock 40 3 items
  28. Glock 41 3 items
  29. Glock 42 1 item
  30. Glock 43 2 items
  31. Glock 43X 5 items
  32. Glock 44 3 items
  33. Glock 45 5 items
  34. Glock 48 7 items
  35. H&K VP9 1 item
  36. Nomad 9 4 items
  37. Sig P220 1 item
  38. Sig P226 1 item
  39. Sig P229 1 item
  40. Sig P238 1 item
  41. Sig P320 17 items
  42. Sig P365 8 items
  43. Sig P365X 3 items
  44. Sig P365XL 7 items
  45. Sig P365 X-Macro 1 item
  46. Sig P938 1 item
  47. Sig MPX 1 item
  48. S&W M&P M2.0 1 item
  49. S&W M&P Shield 2 items
  50. Springfield Hellcat 1 item
  51. Stoeger STR-9 1 item
Mount
  1. M-LOK 1 item
  2. Picatinny 1 item
Option
  1. CZ 5 items
  2. FNH 2 items
  3. Glock 23 items
  4. Sig Sauer 7 items
  5. Smith & Wesson 1 item
  6. Springfield 1 item
  7. Right-Hand 1 item
  8. Left-Hand 1 item
Platform
  1. CZ-USA 3 items
  2. FNH 1 item
  3. Glock 37 items
  4. H&K 1 item
  5. Nomad 2 items
  6. Sig Sauer 28 items
  7. Smith & Wesson 2 items
  8. Springfield 1 item
  9. Stoeger 1 item
Price
  1. $0.00 - $9.99 1 item
  2. $10.00 - $19.99 4 items
  3. $20.00 - $29.99 11 items
  4. $30.00 - $39.99 20 items
  5. $40.00 - $49.99 8 items
  6. $50.00 - $59.99 11 items
  7. $60.00 - $69.99 12 items
  8. $70.00 - $79.99 15 items
  9. $80.00 - $89.99 15 items
  10. $90.00 and above 13 items
Product Type
  1. Accessory 4 items
  2. Barrel 1 item
  3. Basepad 3 items
  4. Charging Handle 2 items
  5. Compensator 10 items
  6. Extended Slide Stop 1 item
  7. Firing Pin 1 item
  8. Grip Accessory 1 item
  9. Grip Module 2 items
  10. Guide Rod 2 items
  11. Locking Block 1 item
  12. Magazine 2 items
  13. Magazine Extension 3 items
  14. Magazine Release 6 items
  15. Magwell 13 items
  16. Muzzle Device Accessory 2 items
  17. Parts Kit 3 items
  18. Pistol Accessory 1 item
  19. Pistol Frame 2 items
  20. Pistol Part 15 items
  21. Pistol Sights 9 items
  22. Recoil Spring 2 items
  23. Safety Selector 1 item
  24. Slide Parts Kit 3 items
  25. Spring 1 item
  26. Trigger 11 items
Size
  1. 3 Slot 1 item
  2. 5 Slot 1 item
  3. 9 Slot 1 item
  4. Full 1 item
Thread Pitch
  1. 1/2x28 6 items
Threaded
  1. No 1 item
Stock Status
  1. Out of stock 110 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