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 97-112 of 230

Page
per page
  1. Grayguns Sig Sauer P320 Competition Adjustable Trigger System - Straight
    Grayguns Sig Sauer P320 Competition Adjustable Trigger System - Straight
    $159.00
    Out of stock
    Add to Wish List Add to Compare
  2. Stoeger Industries STR-9 9MM Magazine - 15RD
    Stoeger Industries STR-9 9MM Magazine - 15RD
    $35.00
    Out of stock
    Add to Wish List Add to Compare
  3. Apex Tactical Specialties CZ P-10 Extended Slide Release
    Apex Tactical Specialties CZ P-10 Extended Slide Release
    $85.50
    Out of stock
    Add to Wish List Add to Compare
  4. Agency Arms Sig P320 X Series Magwell - Black
    Agency Arms Sig P320 X Series Magwell - Black
    $100.00
    Out of stock
    Add to Wish List Add to Compare
  5. Agency Arms Sig P320 Compact/X-Carry Gavel Slide - DLC
    Agency Arms Sig P320 Compact/X-Carry Gavel Slide - DLC
    $825.00
    Out of stock
    Add to Wish List Add to Compare
  6. Agency Arms Sig P320 Single Port Compensator - Black
    Agency Arms Sig P320 Single Port Compensator - Black
    $100.00
    Out of stock
    Add to Wish List Add to Compare
  7. Sig Sauer P320 OEM Slide Completion Kit
    Sig Sauer P320 OEM Slide Completion Kit
    Special Price $83.99 Regular Price $99.99
    Out of stock
    Add to Wish List Add to Compare
  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
    Out of stock
    Add to Wish List Add to Compare
  9. Agency Arms Sig P320 Compact/X-Carry Syndicate S2 Slide
    Agency Arms Sig P320 Compact/X-Carry Syndicate S2 Slide
    $575.00
    Out of stock
    Add to Wish List Add to Compare
  10. Grayguns Sig Sauer P320 X-Five Laser-Sculpted Grip Module - TXG Tungsten-Infused
    Grayguns Sig Sauer P320 X-Five Laser-Sculpted Grip Module - TXG Tungsten-Infused
    $379.00
    Out of stock
    Add to Wish List Add to Compare
  11. Rainier Arms Fiber Optic Sight Set For Glock
    Rainier Arms Fiber Optic Sight Set For Glock
    $50.00
    Out of stock
    Add to Wish List Add to Compare
  12. Apex Tactical Specialties 9mm Threaded Barrel for FN 509 Compact - 3.7"
    Apex Tactical Specialties 9mm Threaded Barrel for FN 509 Compact - 3.7"
    $213.75
    Out of stock
    Add to Wish List Add to Compare
  13. Apex Tactical Specialties FN FNX-45 MRat Compensator - Black
    Apex Tactical Specialties FN FNX-45 MRat Compensator - Black
    $166.25
    Out of stock
    Add to Wish List Add to Compare
  14. Tyrant Design Sig Sauer P365 Slide Cap
    Tyrant Design Sig Sauer P365 Slide Cap
    Out of stock
    Add to Wish List Add to Compare
  15. Shalotek Sig Sauer P365XL LCI Barrel - Black Nitride
    Shalotek Sig Sauer P365XL LCI Barrel - Black Nitride
    $99.00
    Out of stock
    Add to Wish List Add to Compare
  16. 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
    Out of stock
    Add to Wish List Add to Compare
View as Grid List

Items 97-112 of 230

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. Is Firearms? No Remove This Item
Clear All
Shopping Options
Barrel Length
  1. 3.6" 1 item
  2. 3.7" 2 items
  3. 3.9" 2 items
  4. 4" 1 item
  5. 4.5" 1 item
  6. 4.57" 1 item
  7. 5" 1 item
Barrel Profile
  1. SDM 1 item
Caliber
  1. 9mm 28 items
Category
  1. Pistol parts 223 items
Color
Configuration
  1. Flat 1 item
  2. Gen 3 2 items
  3. Gen 5 2 items
  4. G17 1 item
  5. G19 7 items
  6. P320 4 items
  7. P365 2 items
  8. P365XL 1 item
  9. Handgun 2 items
Finish
  1. Battleworn 1 item
  2. Black 3 items
  3. Black/Black 2 items
  4. Black DLC 2 items
  5. Black Nitride 2 items
  6. Black/Nickel 1 item
  7. Black/TiN 2 items
  8. Bronze 2 items
  9. Chameleon 1 item
  10. DLC 16 items
  11. Gold 2 items
  12. Gray 1 item
  13. Melonite 1 item
  14. Nitride 8 items
  15. Stainless Steel 1 item
  16. Anodize 2 items
  17. PVD/CVD 2 items
  18. Titanium Nitride (TiN) 10 items
Magazine Capacity
  1. 7rd 1 item
  2. 15rd 1 item
Manufacturer
  1. Agency Arms 18 items
  2. Angstadt Arms 1 item
  3. Apex Tactical Specialties 23 items
  4. ARC Division 1 item
  5. Arms Republic 3 items
  6. Ascalon Arms 1 item
  7. Brügger & Thomet (B&T) 1 item
  8. Battle Arms Development 3 items
  9. Danger Close Armament 5 items
  10. DPM Systems Technologies 7 items
  11. Driven Arms Co. 1 item
  12. Empire 6 items
  13. Faxon Firearms 6 items
  14. Glock 1 item
  15. GoGun USA 1 item
  16. Grayguns 4 items
  17. Griffin Armament 2 items
  18. Haley Strategic 1 item
  19. HB Industries 3 items
  20. HERA ARMS 1 item
  21. Killer Innovations 3 items
  22. L2D Combat 16 items
  23. Lantac 10 items
  24. Midwest Industries 1 item
  25. Mischief Machine 5 items
  26. Next Level Armament 1 item
  27. Nomad Defense 4 items
  28. Norsso 8 items
  29. Rainier Arms, LLC 6 items
  30. Shalotek 19 items
  31. Sharps Bros 1 item
  32. Sig Sauer 11 items
  33. SLR Rifleworks 3 items
  34. Spinta Precision 3 items
  35. Springer Precision 5 items
  36. Stoeger 1 item
  37. Tactical Development 8 items
  38. Taran Tactical Innovations 12 items
  39. Trinity Nevada 1 item
  40. True Precision 2 items
  41. TXC Holsters 1 item
  42. Tyrant Designs 13 items
  43. Wilson Combat 1 item
Model
  1. CZ Scorpion 1 item
  2. CZ Shadow 1 item
  3. CZ P-10 5 items
  4. FNH 509 4 items
  5. FNH FNX-45 1 item
  6. Glock 17 21 items
  7. Glock 19 33 items
  8. Glock 19X 5 items
  9. Glock 20 3 items
  10. Glock 21 3 items
  11. Glock 22 9 items
  12. Glock 23 8 items
  13. Glock 24 6 items
  14. Glock 25 3 items
  15. Glock 26 8 items
  16. Glock 27 7 items
  17. Glock 28 3 items
  18. Glock 29 3 items
  19. Glock 30 3 items
  20. Glock 31 8 items
  21. Glock 32 7 items
  22. Glock 33 7 items
  23. Glock 34 10 items
  24. Glock 35 8 items
  25. Glock 36 1 item
  26. Glock 37 3 items
  27. Glock 38 3 items
  28. Glock 39 3 items
  29. Glock 40 3 items
  30. Glock 41 3 items
  31. Glock 42 1 item
  32. Glock 43 5 items
  33. Glock 43X 6 items
  34. Glock 44 3 items
  35. Glock 45 5 items
  36. Glock 48 8 items
  37. H&K VP9 1 item
  38. Nomad 9 4 items
  39. Sig P220 1 item
  40. Sig P226 1 item
  41. Sig P229 1 item
  42. Sig P238 1 item
  43. Sig P320 50 items
  44. Sig P365 19 items
  45. Sig P365X 3 items
  46. Sig P365XL 11 items
  47. Sig P365 X-Macro 1 item
  48. Sig P938 1 item
  49. Sig MPX 1 item
  50. S&W M&P 1 item
  51. S&W M&P M2.0 3 items
  52. S&W M&P Shield 3 items
  53. Springfield Hellcat 1 item
  54. Stoeger STR-9 1 item
Mount
  1. M-LOK 1 item
  2. Picatinny 2 items
Optic Footprint
  1. Shield RMSc 6 items
  2. Trijicon RMR 1 item
Option
  1. Safety 2 items
  2. No Safety 2 items
  3. Sig Sauer P Series 1 item
  4. CZ 9 items
  5. FNH 5 items
  6. Glock 51 items
  7. Sig Sauer 28 items
  8. Smith & Wesson 4 items
  9. Springfield 1 item
  10. Right-Hand 1 item
  11. Left-Hand 1 item
Platform
  1. Beretta 1 item
  2. CZ-USA 6 items
  3. FNH 5 items
  4. Glock 71 items
  5. H&K 1 item
  6. Nomad 2 items
  7. Sig Sauer 82 items
  8. Smith & Wesson 6 items
  9. Springfield 3 items
  10. Stoeger 1 item
Price
  1. $0.00 - $999.99 229 items
  2. $1,000.00 and above 1 item
Product Type
  1. Accessory 4 items
  2. Barrel 28 items
  3. Basepad 3 items
  4. Charging Handle 2 items
  5. Compensator 16 items
  6. Extended Slide Stop 1 item
  7. Firing Pin 1 item
  8. Grip Accessory 1 item
  9. Grip Module 8 items
  10. Guide Rod 3 items
  11. Holster 1 item
  12. Iron Sight 1 item
  13. Locking Block 1 item
  14. Magazine 3 items
  15. Magazine Extension 3 items
  16. Magazine Release 6 items
  17. Magwell 16 items
  18. Muzzle Device Accessory 2 items
  19. Optic Plate 1 item
  20. Parts Kit 3 items
  21. Pistol Accessory 1 item
  22. Pistol Frame 9 items
  23. Pistol Part 15 items
  24. Pistol Sights 9 items
  25. Recoil Spring 6 items
  26. Slide 44 items
  27. Slide Parts Kit 3 items
  28. Spring 1 item
  29. Top Cover 1 item
  30. Trigger 25 items
  31. Upper Parts Kit 2 items
Size
  1. 3 Slot 1 item
  2. 5 Slot 1 item
  3. 9 Slot 1 item
  4. X-Compact 2 items
  5. Full 1 item
Thread Pitch
  1. 1/2x28 15 items
Threaded
  1. Yes 4 items
  2. No 5 items
Twist Rate
  1. 1:10 6 items
Stock Status
  1. Out of stock 230 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