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 65-68 of 68

Page
per page
  1. Blackout Defense Quantum Mark 2 AR15 Upper And Handguard Set
    Blackout Defense Quantum Mark 2 AR15 Upper And Handguard Set
    Out of stock
    Add to Wish List Add to Compare
  2. Brugger & Thomet (B&T) BWC9 Chassis w/ Aimpoint Acro P2
    Brugger & Thomet (B&T) BWC9 Chassis w/ Aimpoint Acro P2
    $2,300.00
    Out of stock
    Add to Wish List Add to Compare
  3. Patriot Ordnance Factory (POF) P15 Gen 4 .223 Complete Lower Receiver
    Patriot Ordnance Factory (POF) P15 Gen 4 .223 Complete Lower Receiver
    $633.00
    Out of stock
    Add to Wish List Add to Compare
  4. Primary Weapons Systems MK1 MOD 2-M AR-15 Stripped Ambidextrous Lower Receiver
    Primary Weapons Systems MK1 MOD 2-M AR-15 Stripped Ambidextrous Lower Receiver
    $279.95
    Out of stock
    Add to Wish List Add to Compare
View as Grid List

Items 65-68 of 68

Page
per page
Shop By
Now Shopping by
  1. Finish Anodize Remove This Item
Clear All
Shopping Options
Barrel Length
  1. 8" 1 item
  2. 8.5" 1 item
  3. 11.5" 1 item
  4. 16" 1 item
Caliber
  1. .30 Cal 1 item
  2. 300 Blackout 1 item
  3. 5.56 NATO 4 items
  4. 9mm 1 item
Category
  1. Receiver Parts 28 items
  2. Parts & Kits 5 items
  3. Buffer Systems 2 items
  4. Trigger Parts 1 item
  5. Grips 10 items
  6. Charging Handles 3 items
  7. Rifle Handguards 13 items
  8. Stocks & Braces 6 items
Color
Configuration
  1. Right Hand 1 item
Gas Block Diameter
  1. .750" 3 items
Gas System Length
  1. Pistol 1 item
  2. Mid 1 item
Inside Diameter
  1. 1.3" 1 item
  2. 1.34" 3 items
  3. 1.39" 1 item
  4. 1.42" 1 item
Is Firearms?
  1. No 68 items
Manufacturer
  1. A3 Tactical 6 items
  2. Aero Precision 4 items
  3. Aeroknox 2 items
  4. Agency Arms 1 item
  5. Angstadt Arms 1 item
  6. Brügger & Thomet (B&T) 1 item
  7. Ballistic Advantage 6 items
  8. Blackout Defense 2 items
  9. Centurion Arms 1 item
  10. Daniel Defense 1 item
  11. Faxon Firearms 2 items
  12. Fortis MFG 14 items
  13. Forward Controls Design 1 item
  14. Geissele 2 items
  15. Grey Birch MFG 2 items
  16. Icon Defense 3 items
  17. JK Armament 1 item
  18. JMAC Customs 4 items
  19. JP Enterprises Inc 1 item
  20. Midwest Industries 2 items
  21. Patriot Ordnance Factory (POF) 1 item
  22. Primary Weapon Systems 1 item
  23. Rainier Arms, LLC 4 items
  24. Rise Armament 1 item
  25. Sharps Bros 2 items
  26. Silencerco 1 item
  27. Stern Defense 1 item
Model
  1. Sig MCX 1 item
Mount
  1. M-LOK 13 items
  2. Picatinny 3 items
Optic Footprint
  1. Aimpoint Acro 1 item
Option
  1. AR-10 1 item
  2. AR-15 22 items
  3. IWI Uzi Pro 1 item
  4. B&T APC 1 item
Platform
  1. 10-22 1 item
  2. AR-10/LR308 1 item
  3. AR-15 6 items
  4. AK47/74 1 item
  5. CZ-USA 1 item
  6. Sig Sauer 1 item
Price
  1. $0.00 - $999.99 63 items
  2. $1,000.00 - $1,999.99 4 items
  3. $2,000.00 and above 1 item
Product Type
  1. 10/22 Receiver 1 item
  2. AR-10 Receiver Set 1 item
  3. AR-10 Stripped Lower Receiver 1 item
  4. AR-15 Assembled Upper Receiver 2 items
  5. AR-15 Charging Handle 2 items
  6. AR-15 Complete Lower Receiver 2 items
  7. AR-15 Complete Upper Receiver 4 items
  8. AR-15 Partial Upper Receiver 1 item
  9. AR-15 Handguard 8 items
  10. AR-15 Stripped Lower Receiver 8 items
  11. AR-15 Stripped Upper Receiver 5 items
  12. Brace 2 items
  13. Buffer Tube 2 items
  14. Cable Clip 1 item
  15. Charging Handle 2 items
  16. Chassis 3 items
  17. Dust Cover 1 item
  18. End Cap 1 item
  19. Forearm Accesory 1 item
  20. Handguard 5 items
  21. Lower Parts Kit 1 item
  22. Magazine Release 1 item
  23. Pistol Grip 5 items
  24. Safety Selector 1 item
  25. Stock Accessory 1 item
  26. Stock Adapter 3 items
  27. Trigger 1 item
  28. Vertical Grip 5 items
Rail Length
  1. 4" 1 item
  2. 5.5" 1 item
  3. 6.25" 2 items
  4. 6.7" 4 items
  5. 7" 2 items
  6. 8" 1 item
  7. 9.5" 1 item
  8. 9.6" 4 items
  9. 10" 4 items
  10. 10.5" 4 items
  11. 11.8" 3 items
  12. 12.4" 2 items
  13. 12.5" 2 items
  14. 13" 5 items
  15. 13.5" 1 item
  16. 13.8" 4 items
  17. 15" 3 items
  18. 15.3" 4 items
Thread Pitch
  1. 1/2x28 2 items
Twist Rate
  1. 1:7 1 item
Stock Status
  1. In stock 42 items
  2. Out of stock 26 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