Loading...

Please wait...

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 1041

Page
per page
  1. Agency Arms Drop In Trigger For Glock
    Agency Arms Drop In Trigger For Glock
    $135.00 - $145.00
    View Details
  2. Apex Tactical Specialties M&P Shield Action Enhancement Trigger
    Apex Tactical Specialties M&P Shield Action Enhancement Trigger
    $80.75
    View Details
  3. Trijicon M&P HD Night Sight Set-Yellow Front Outline
    Trijicon M&P HD Night Sight Set-Yellow Front Outline
    $170.00
    View Details
  4. Zev Technologies Titanium Pin Kit For Glock
    Zev Technologies Titanium Pin Kit For Glock
    $31.36 - $41.16
    View Details
  5. Modular Evolution Evopod Bi-Pod Barricade Buster
    Modular Evolution Evopod Bi-Pod Barricade Buster
    Special Price $69.92 Regular Price $93.99
    View Details
  6. Weapon Evolution - Dragon Patch
    Weapon Evolution - Dragon Patch
    $4.95
    View Details
  7. Apex Tactical Specialties M&P Flat-Faced Forward Set Sear & Trigger Kit - Red
    Apex Tactical Specialties M&P Flat-Faced Forward Set Sear & Trigger Kit - Red
    $175.75
    View Details
  8. Dark Hour Defense GSOD For Glock 17
    Dark Hour Defense GSOD For Glock 17
    Special Price $77.92 Regular Price $97.00
    View Details
  9. Rise Armament RA-434-HPT High Performance AR-15 Trigger - Silver
    Rise Armament RA-434-HPT High Performance AR-15 Trigger - Silver
    $179.99
    View Details
  10. Lantac Fluted Threaded Barrel For Glock 17 - Stainless Steel
    Lantac Fluted Threaded Barrel For Glock 17 - Stainless Steel
    $275.99
    View Details
  11. Odin Works XGMR II Extended Magazine Release For Glock - Black
    Odin Works XGMR II Extended Magazine Release For Glock - Black
    $28.50
    View Details
  12. Faxon Firearms Flamed Barrel For Glock 19 - Nitride
    Faxon Firearms Flamed Barrel For Glock 19 - Nitride
    $164.68
    View Details
  13. Faxon Firearms Flamed Barrel For Glock 17 - TiN
    Faxon Firearms Flamed Barrel For Glock 17 - TiN
    $192.28
    View Details
  14. Night Fision Tritium Sight Set For Glock - Square Rear
    Night Fision Tritium Sight Set For Glock - Square Rear
    $97.20
    View Details
  15. Killer Innovations Universal Velocity Magwell For Glock 17/22/31 -
    Killer Innovations Universal Velocity Magwell For Glock 17/22/31 -
    $94.49
    +2
    View Details
  16. Killer Innovations Universal Velocity Magwell For Glock 19/23/32
    Killer Innovations Universal Velocity Magwell For Glock 19/23/32
    $94.49
    +2
    View Details
View as Grid List

Items 1-16 of 1041

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
Shopping Options
Category
  1. Pistol parts 1019 item
Price
  1. Less than $10 10 item
  2. $10 to $25 89 item
  3. $25 to $50 104 item
  4. $50 to $100 273 item
  5. $100 to $250 305 item
  6. $250 to $500 176 item
  7. $500 to $1000 30 item
  8. Greater than $1000 24 item
Manufacturer
  1. ARC Division 5 item
  2. Aeroknox 1 item
  3. Agency Arms 55 item
  4. Align Tactical 5 item
  5. Angstadt Arms 1 item
  6. Apex Tactical Specialties 51 item
  7. Armaspec 1 item
  8. Arms Republic 9 item
  9. Ascalon Arms 2 item
  10. Battle Arms Development 9 item
  11. Benchmade 1 item
  12. Brouwer 1 item
  13. Brügger & Thomet (B&T) 1 item
  14. CAA 6 item
  15. CMC Triggers 2 item
  16. CZ-USA 1 item
  17. DPM Systems Technologies 44 item
  18. Danger Close Armament 15 item
  19. Dark Hour Defense 3 item
  20. Devil Dog Concepts 3 item
  21. Driven Arms Co. 1 item
  22. Elzetta Design LLC 1 item
  23. Emissary Development 1 item
  24. Empire 12 item
  25. Faction 1 item
  26. Faxon Firearms 42 item
  27. Fortis MFG 3 item
  28. Forward Controls Design 5 item
  29. Glock 3 item
  30. GoGun USA 3 item
  31. Grayguns 31 item
  32. Grey Ghost Precision 12 item
  33. Griffin Armament 12 item
  34. HB Industries 5 item
  35. HERA ARMS 1 item
  36. Haley Strategic 1 item
  37. Handleitgrips 21 item
  38. Iron City Rifle Works 1 item
  39. JMAC Customs 1 item
  40. K Rounds LLC 1 item
  41. KNS Precision 1 item
  42. Kagwerks 3 item
  43. Killer Innovations 67 item
  44. Krebs Customs 1 item
  45. Kriss USA 1 item
  46. L2D Combat 29 item
  47. Lantac 24 item
  48. Lone Wolf Arms 15 item
  49. Magpul Industries 4 item
  50. Matrix Arms 2 item
  51. Midwest Industries 1 item
  52. Mirzon 7 item
  53. Mischief Machine 8 item
  54. Modular Evolution LLC 1 item
  55. NIGHT FISION 40 item
  56. Next Level Armament 1 item
  57. Nighthawk Custom 6 item
  58. Nomad Defense 13 item
  59. Norsso 21 item
  60. Obsidian Arms 2 item
  61. Odin Works 2 item
  62. Overwatch Precision 4 item
  63. Phoenix Trinity 1 item
  64. Polymer80 3 item
  65. Radian Weapons 1 item
  66. Rainier Arms, LLC 14 item
  67. Rainier Industries 1 item
  68. Reptilia Corp 1 item
  69. Resilient Warrior 2 item
  70. Rise Armament 2 item
  71. SLR Rifleworks 3 item
  72. Shalotek 22 item
  73. Sharps Bros 6 item
  74. Sig Sauer 41 item
  75. Smith & Wesson 1 item
  76. Spinta Precision 7 item
  77. Sprinco (Tactical Springs) 8 item
  78. Springer Precision 11 item
  79. Stoeger 1 item
  80. Strike Industries 33 item
  81. Surefire 1 item
  82. Swampfox 2 item
  83. TXC Holsters 1 item
  84. Tam Tamography 1 item
  85. Taran Tactical Innovations 15 item
  86. Taylor Freelance 6 item
  87. The Gun Co. 3 item
  88. Timney Triggers 3 item
  89. Toni Systems 13 item
  90. Trijicon 3 item
  91. Trinity Nevada 23 item
  92. TruCalibre 1 item
  93. True Precision 55 item
  94. Tyrant Designs 61 item
  95. Wilson Combat 1 item
  96. ZEV Technologies 37 item
  97. Zaffiri Precision 15 item
Caliber
  1. .45 ACP 2 item
  2. 9mm 162 item
Finish
  1. Aluminum 2 item
  2. Anodize 4 item
  3. Battleworn 2 item
  4. Black 12 item
  5. Black DLC 4 item
  6. Black Nitride 2 item
  7. Black/Black 7 item
  8. Black/Nickel 6 item
  9. Black/TiN 7 item
  10. Blue 5 item
  11. Bronze 10 item
  12. Cerakote 1 item
  13. Clear 1 item
  14. DLC 38 item
  15. Gold 9 item
  16. Gray 3 item
  17. Grey 5 item
  18. Melonite 2 item
  19. Molecular Dense Coating (MDC) 1 item
  20. NeoChromatic 1 item
  21. Nitride 15 item
  22. PVD/CVD 2 item
  23. Polished 1 item
  24. Red 5 item
  25. Stainless Steel 2 item
  26. Titanium Nitride (TiN) 9 item
Option
  1. (Blue) - 15 lbs 2 item
  2. (Green) - 13 lbs 2 item
  3. (Red) - 18 lbs 2 item
  4. 4lb 1 item
  5. 6.5lb 1 item
  6. 6lb 1 item
  7. CZ 24 item
  8. FN 509 1 item
  9. FNH 8 item
  10. Glock 328 item
  11. Glock 17 1 item
  12. Heckler & Koch 1 item
  13. Multi Cut 3 item
  14. RMR Cut 4 item
  15. Sig Sauer 102 item
  16. Smith & Wesson 19 item
  17. Springfield 10 item
  18. V1 5 item
  19. V2 6 item
  20. V3 5 item
  21. V4 5 item
  22. Walther 2 item
Configuration
  1. .45 ACP 1 item
  2. 1st - 3rd Gen 1 item
  3. 9mm, .40, .357 1 item
  4. Curved 1 item
  5. Fiber Optic - Mid Height Sights 2 item
  6. Fiber Optic - Suppressor Height Sights 2 item
  7. Flat 1 item
  8. G17 22 item
  9. G19 31 item
  10. G26 4 item
  11. G42 1 item
  12. G43 10 item
  13. Gen 1-3 2 item
  14. Gen 3 25 item
  15. Gen 4 22 item
  16. Gen 5 18 item
  17. Glock .40 Cal Gen1-3 1 item
  18. Glock .40 cal Gen4 1 item
  19. Glock 9mm Gen 1-3 1 item
  20. Glock 9mm Gen4 1 item
  21. Glock Gen 5 1 item
  22. Handgun 7 item
  23. Large Backstrap 2 item
  24. Med Backstrap 2 item
  25. No Backstrap 2 item
  26. P320 10 item
  27. P365 6 item
  28. P365XL 1 item
  29. Right Hand 1 item
  30. Stainless Steel 2 item
  31. Standard 1 item
  32. Straight 1 item
  33. Titanium 1 item
  34. Tritium Stealth Sights 2 item
  35. Tungsten 2 item
Stock Status
  1. In Stock 735 item
  2. Out of Stock 306 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