Pursue Your Passion
My Cart

Rainier Arms on Instagram

Menu
Account
raineirarms

Rifle Parts

Whether you're building a new rifle from scratch or looking to upgrade an existing firearm, our vast selection of rifle parts has everything you are going to need in that journey. At Rainier Arms' selection of rifle parts, you can find a wide variety of products including lower and upper parts, trigger parts, muzzle devices, and many more. 

Explore our selection of high-quality parts coming from various leading manufacturers like Strike Industries, Magpul, BCM, and many more.

Also, don't forget to check our specially-made Rainier Arms barrels for your firearms.

View as Grid List

Items 81-96 of 104

Page
per page
  3. Hiperfire EDT Heavy Gunner, AR15/10 Trigger Assembly
    Hiperfire EDT Heavy Gunner, AR15/10 Trigger Assembly
    $94.05
    Out of stock
    Add to Wish List Add to Compare
  4. Precision Armament M4-72 AK-47 Severe-Duty Compensator
    Precision Armament M4-72 AK-47 Severe-Duty Compensator
    $94.99
    Out of stock
    Add to Wish List Add to Compare
  5. Arms Republic 9MM Stripped Billet Upper Receiver
    Arms Republic 9MM Stripped Billet Upper Receiver
    $94.95
    Out of stock
    Add to Wish List Add to Compare
  6. WMD Guns .308 Lower Parts Kit Mod 3 - NiB-X/Nitromet
    WMD Guns .308 Lower Parts Kit Mod 3 - NiB-X/Nitromet
    $95.00
    Out of stock
    Add to Wish List Add to Compare
  7. Aeroknox Butterfly Brake .223/5.56
    Aeroknox Butterfly Brake .223/5.56
    $90.00
    Out of stock
    Add to Wish List Add to Compare
  9. Angstadt Arms Blastwave 3-Lug QD 9mm Blast Shield
    Angstadt Arms Blastwave 3-Lug QD 9mm Blast Shield
    $90.00
    Out of stock
    Add to Wish List Add to Compare
  10. AeroKnox Orion AR Grip
    AeroKnox Orion AR Grip
    $90.00
    Out of stock
    Add to Wish List Add to Compare
  12. Faxon Firearms Stripped Forged Upper Receiver - 7075-T6
    Faxon Firearms Stripped Forged Upper Receiver - 7075-T6
    $91.99
    Out of stock
    Add to Wish List Add to Compare
  14. Bravo Company MFG (BCM) Extended M3 5.56 Compensator
    Bravo Company MFG (BCM) Extended M3 5.56 Compensator
    $94.95
    Out of stock
    Add to Wish List Add to Compare
  16. JK Armament 155 HD Thread Mount - 1/2x28
    JK Armament 155 HD Thread Mount - 1/2x28
    $90.00
    Out of stock
    Add to Wish List Add to Compare
View as Grid List

Items 81-96 of 104

Page
per page
Shop By
Now Shopping by
  1. Price $90.00 - $99.99 Remove This Item
Clear All
Shopping Options
Barrel Length
  1. 5.5" 1 item
  2. 7.25" 1 item
  3. 7.5" 1 item
  4. 8" 1 item
  5. 16" 1 item
Caliber
  1. .223/5.56 2 items
  2. .223 Rem 1 item
  3. .30 Cal 2 items
  4. .308 1 item
  5. 5.56X45 1 item
  6. 5.56 NATO 2 items
  7. 5.56mm 2 items
  8. 7.62x39 1 item
  9. 8.6 Blackout 1 item
  10. 9mm 5 items
Category
  1. Receiver Parts 9 items
  2. Parts & Kits 3 items
  3. Barrels 4 items
  4. Buffer Systems 2 items
  5. Trigger Parts 6 items
  6. Gas Systems 3 items
  7. Muzzle Devices 45 items
  8. Grips 7 items
  9. Charging Handles 16 items
  10. Rifle Handguards 1 item
  11. Stocks & Braces 8 items
Color
Configuration
  1. AR-10 1 item
  2. Curved 1 item
  3. Flat 1 item
  4. .625 DIA 1 item
  5. .750 DIA 1 item
Finish
  1. Cerakote 1 item
  2. DLC 1 item
  3. Nitride 2 items
  4. Anodize 4 items
Gas Block Diameter
  1. .750" 3 items
Gas System Length
  1. Blowback 2 items
  2. Pistol 1 item
  3. Mid 1 item
Inside Diameter
  1. 1.385" 1 item
Manufacturer
  1. A3 Tactical 3 items
  2. Advanced Armament Company (AAC) 1 item
  3. Aero Precision 1 item
  4. Aeroknox 2 items
  5. Airborne Arms 1 item
  6. Andro Corp Industries 1 item
  7. Angstadt Arms 2 items
  8. Arms Republic 2 items
  9. B5 Systems 1 item
  10. Ballistic Advantage 3 items
  11. Battle Arms Development 1 item
  12. Bootleg 1 item
  13. Bravo Company MFG (BCM) 5 items
  14. Cross Machine Tool (CMT) 2 items
  15. F-1 Firearms 1 item
  16. Faxon Firearms 1 item
  17. Fortis MFG 3 items
  18. Forward Controls Design 9 items
  19. Griffin Armament 4 items
  20. Hiperfire 4 items
  21. James Madison Tactical (JMT) 2 items
  22. JK Armament 3 items
  23. JL Billet 1 item
  24. JMAC Customs 6 items
  25. Kinetic Development Group 1 item
  26. Krebs Customs 1 item
  27. Mad Pig 4 items
  28. Magpul Industries 1 item
  29. NEMO Arms 1 item
  30. Next Level Armament 2 items
  31. Noveske 2 items
  32. Patriot Ordnance Factory (POF) 1 item
  33. Precision Armament 3 items
  34. Primary Weapon Systems 1 item
  35. Q, LLC 5 items
  36. R&D Precision 1 item
  37. Radian Weapons 6 items
  38. SB Tactical 4 items
  39. Silencerco 1 item
  40. Sons of Liberty Gun Works 3 items
  41. Tyrant Designs 1 item
  42. V Seven Weapon Systems 2 items
  43. VLTOR 1 item
  44. WMD Guns 3 items
Mount
  1. KeyMod 1 item
  2. Picatinny 3 items
Option
  1. AK-47/74 3 items
  2. AR-10 3 items
  3. AR-15 19 items
  4. Non-Adjustable 2 items
Platform
  1. AR-15 8 items
Product Type
  1. AR-10 / LR 308 Charging Handle 1 item
  2. AR-15 Assembled Upper Receiver 1 item
  3. AR-15 Barrel 4 items
  4. AR-15 Charging Handle 10 items
  5. AR-15 Complete Lower Receiver 1 item
  6. AR-15 Handguard 1 item
  7. AR-15 Stripped Lower Receiver 2 items
  8. AR-15 Stripped Upper Receiver 4 items
  9. AR-9 Upper Receiver 1 item
  10. Blast Shield 1 item
  11. Brace 4 items
  12. Buffer Kit 1 item
  13. Buffer Tube 1 item
  14. Charging Handle 6 items
  15. Compensator 18 items
  16. Flash Hider 7 items
  17. Gas Block 3 items
  18. Lower Parts Kit 1 item
  19. Muzzle Brake 17 items
  20. Muzzle Device Accessory 2 items
  21. Pistol Grip 5 items
  22. Stock 3 items
  23. Stock Adapter 1 item
  24. Trigger 6 items
  25. Vertical Grip 2 items
Rail Length
  1. 4" 1 item
  2. 7" 1 item
  3. 9.2" 1 item
  4. 10" 1 item
  5. 11.25" 1 item
  6. 13.5" 1 item
  7. 15" 1 item
Size
  1. X-Large 1 item
Thread Pitch
  1. 1/2x28 (9mm) 4 items
  2. 1/2x28 (.22 cal) 23 items
  3. 1/2x36 2 items
  4. 5/8x24 (.30 cal) 15 items
  5. 11/16x24 1 item
  6. M13.5x1 LH 1 item
  7. M14x1 LH 1 item
  8. M18x1.5 1 item
  9. M24x1.5 RH 1 item
Threaded
  1. Yes 11 items
Twist Rate
  1. 1:7 2 items
  2. 1:10 2 items
Stock Status
  1. In stock 73 items
  2. Out of stock 31 items
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.
Google Customer Reviews Google Customer Reviews