Pursue Your Passion
My Cart

Discord

Menu
Account

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.

Dark mode is

View as Grid List

Items 1-16 of 23

Page
per page
  1. Rainier Arms Ultramatch MOD2 .223 Wylde AR-15 Barrel - 20" Satin
    Rainier Arms Ultramatch MOD2 .223 Wylde AR-15 Barrel - 20" Satin
    $400.00
    Out of stock
    Add to Wish List Add to Compare
  2. Rainier Arms Ultramatch MOD2 .223 Wylde AR-15 Barrel - 18" Nitride
    Rainier Arms Ultramatch MOD2 .223 Wylde AR-15 Barrel - 18" Nitride
    $400.00
    Out of stock
    Add to Wish List Add to Compare
  3. Noveske CHF Chrome Lined Switchblock 5.56 NATO Barrel - 10.5"
    Noveske CHF Chrome Lined Switchblock 5.56 NATO Barrel - 10.5"
    $565.25
    Out of stock
    Add to Wish List Add to Compare
  4. Noveske CHF Chrome Lined Lo-Pro Gas Block 5.56 NATO Barrel - 14.5"
    Noveske CHF Chrome Lined Lo-Pro Gas Block 5.56 NATO Barrel - 14.5"
    $503.50
    Out of stock
    Add to Wish List Add to Compare
  5. Ballistic Advantage Modern Series 5.56 NATO Barrel - 10.5"
    Ballistic Advantage Modern Series 5.56 NATO Barrel - 10.5"
    $142.50
    Out of stock
    Add to Wish List Add to Compare
  6. Ballistic Advantage Performance Series 5.56 Hanson Barrel - 13.7"
    Ballistic Advantage Performance Series 5.56 Hanson Barrel - 13.7"
    $223.25
    Out of stock
    Add to Wish List Add to Compare
  7. Rainier Arms Select 5.56 NATO AR-15 Barrel - 12.5"
    Rainier Arms Select 5.56 NATO AR-15 Barrel - 12.5"
    $195.00
    Out of stock
    Add to Wish List Add to Compare
  8. Rainier Arms Exclusive Spinta Precision .223 Wylde Dissipator Barrel - 16" (Rainier Arms Exclusive)
    Spinta Precision .223 Wylde Dissipator Barrel - 16" (Rainier Arms Exclusive)
    Special Price $149.99 Regular Price $199.99
    Out of stock
    Add to Wish List Add to Compare
  9. Centurion Arms Lightweight Hammer Forged 5.56 Barrel - 16"
    Centurion Arms Lightweight Hammer Forged 5.56 Barrel - 16"
    $285.00
    Out of stock
    Add to Wish List Add to Compare
  10. Centurion Arms Lightweight Hammer Forged 5.56 Barrel - 11.5"
    Centurion Arms Lightweight Hammer Forged 5.56 Barrel - 11.5"
    $285.00
    Out of stock
    Add to Wish List Add to Compare
  11. Rainier Arms Select 5.56 NATO Dissipator AR-15 Barrel - 16"
    Rainier Arms Select 5.56 NATO Dissipator AR-15 Barrel - 16"
    $195.00
    Out of stock
    Add to Wish List Add to Compare
  12. Rainier Arms Ultramatch MOD2 .223 Wylde AR-15 Barrel - 12" Satin
    Rainier Arms Ultramatch MOD2 .223 Wylde AR-15 Barrel - 12" Satin
    $400.00
    Out of stock
    Add to Wish List Add to Compare
  13. Rainier Arms RUC PRO Mk1 Riflespeed Partial Upper Receiver - 11.5"
    Rainier Arms RUC PRO Mk1 Riflespeed Partial Upper Receiver - 11.5"
    $750.00
    Out of stock
    Add to Wish List Add to Compare
  14. Rainier Arms RUC PRO Mk1 5.56 NATO Riflespeed Partial Upper Receiver - 12"
    Rainier Arms RUC PRO Mk1 5.56 NATO Riflespeed Partial Upper Receiver - 12"
    $750.00
    Out of stock
    Add to Wish List Add to Compare
  15. Sons Of Liberty Gun Works 5.56mm CHF V2 AR-15 Combat Barrel - 16"
    Sons Of Liberty Gun Works 5.56mm CHF V2 AR-15 Combat Barrel - 16"
    $299.25
    Out of stock
    Add to Wish List Add to Compare
  16. Sons of Liberty Gun Works M4-89 5.56 AR-15 Upper - 16"
    Sons of Liberty Gun Works M4-89 5.56 AR-15 Upper - 16"
    $855.00
    Out of stock
    Add to Wish List Add to Compare
View as Grid List

Items 1-16 of 23

Page
per page
Shop By
Now Shopping by
  1. Gas Block Diameter .750" Remove This Item
  2. Thread Pitch 1/2x28 Remove This Item
  3. Price $0.00 - $999.99 Remove This Item
Clear All
Shopping Options
Barrel Length
  1. 10.5" 2 items
  2. 11.5" 3 items
  3. 12" 2 items
  4. 12.5" 3 items
  5. 13.7" 1 item
  6. 14.5" 1 item
  7. 16" 8 items
  8. 18" 1 item
  9. 20" 2 items
Barrel Profile
  1. Dissipator 1 item
  2. Non-fluted 1 item
Caliber
  1. .223/5.56 2 items
  2. .223 Wylde 5 items
  3. 5.56 NATO 16 items
Category
  1. Receiver Parts 4 items
  2. Barrels 7 items
  3. Rifle Barrels 12 items
Color
Finish
  1. Nitride 5 items
  2. Satin 2 items
  3. Quench Polish Quench (QPQ) 1 item
Gas System Length
  1. Carbine 7 items
  2. Mid 6 items
  3. Intermediate 1 item
  4. Rifle 4 items
Is Firearms?
  1. No 23 items
Manufacturer
  1. Angstadt Arms 1 item
  2. Ballistic Advantage 5 items
  3. Centurion Arms 2 items
  4. Noveske 4 items
  5. Rainier Arms, LLC 8 items
  6. Sons of Liberty Gun Works 2 items
  7. Spinta Precision 1 item
Mount
  1. M-LOK 1 item
Option
  1. Non-Adjustable 1 item
Platform
  1. AR-15 9 items
Price
  1. $100.00 - $199.99 7 items
  2. $200.00 - $299.99 4 items
  3. $400.00 - $499.99 6 items
  4. $500.00 - $599.99 3 items
  5. $700.00 - $799.99 2 items
  6. $800.00 and above 1 item
Product Type
  1. AR-15 Barrel 7 items
  2. AR-15 Complete Upper Receiver 1 item
  3. AR-15 Partial Upper Receiver 3 items
  4. Barrel 12 items
Rail Length
  1. 9.55" 1 item
  2. 10.7" 1 item
  3. 15" 2 items
Threaded
  1. Yes 8 items
Twist Rate
  1. 1:7 11 items
  2. 1:7.5 4 items
  3. 1:8 2 items
Stock Status
  1. Out of stock 23 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.
Google Customer Reviews Google Customer Reviews